Bungalow 135 sqm: Floor plan + windows

It is perfectly fine if one has different priorities than others.
We are only two people and cook less often than families. Still, cooking is important to me, so you should consider whether rarely also means passionless cooking. In terms of space: you still want to have a stove and dishwasher, you also have knives and a coffee machine when you cook just for yourself, and when the dishwasher is loaded, you still want to be able to stay in the kitchen. And the table... yes, we often eat on the sofa, but on weekends during one of the rare nice meals we don’t, then it’s nicely set, and we also have guests over for meals, etc.
If cooking is less passionate, then I would plan the kitchen separately and put a table against the wall in the living room that can be pulled out when guests come. That works well in apartments too.
The photo of the gray kitchen: it is simply in a separate kitchen niche, probably an open L-shape with a transition to the dining area and then the living area – properly structured.
Here the gray kitchen would be somewhat out of place, i.e., in the large room. The space between the hallway and kitchen is uncomfortable for sitting. Yes, as you drew it, it shows very nicely that "only" the dining area fits well between the reading corner and living area.
When I saw the bicycle in the bedroom yesterday, I spontaneously thought: but not in the bedroom!
Instead of the 20sqm large bedroom, I would plan a large sports and playroom. At least I would plan the two rooms to be the same size.

Just a quick note from the office:

You really want to put the treadmill, the roller for the bike in winter, into the heated living room?

Yummy!!!
Wooden floor planned?
That will nicely soak up the sweat *shudder* – not to mention the smell with excessive use.

That would be an absolute no-go for me.

No, a wooden floor is not planned, but tiles... and I don’t sweat so much when exercising that the whole floor would be covered.

He’s getting a luxurious playroom and you admit on page 15 that you do a lot of sports and use the treadmill and/or roller in winter. But I don’t see any corner for you anywhere.

When I saw the bike in the bedroom yesterday, I spontaneously thought: but not in the bedroom!
I would plan a large sports- and playroom instead of the 20sqm bedroom. At least, I would plan both rooms the same size.

I currently have a separate 20sqm room in our apartment. All of that stuff is in there: books, bike, desk, etc. What do I do regularly? I carry the stuff into the living room in winter and work out there (in summer it’s not used and is back in my room – I work out outside then). When I read, I do it in bed (bedroom) or in the living room or outside. When I do home office, I sit with my laptop in the living room. Everything this room is meant for, I never actually do in that room. It’s nothing more than a storage room. For that reason, there’s the open corner on the west side in the new floor plan. That’s for me and all my stuff and is simultaneously part of the living room. That sounds perfect to me.

And yes: I’d prefer everything in one big room. That’s why I have this loft floor plan. I would even connect the bedroom with the living area if my boyfriend agreed (but he doesn’t like that, so he has a door to his area). Only the bathroom I don’t want in the living room.

No one says you need a big kitchen. Just take your plan and turn the G into a line and a peninsula. Then add coffee machine, Sodastream, coffee maker or toaster or blender for the protein shake. Then it gets tight to find space for prep.

Ok, no dining table. You have to know that. Not everyone who lives alone or as a couple eats on the sofa. Then maybe a counter with bar stools makes sense for you.
Then the sofa no longer fits.

Yes, I’ve already thought about putting some kind of bar just to the side – that is, facing the hallway... but that looks a lot like a pub.
I have to take a closer look at that tonight, will try it with the kitchen planner.

Why do you want a dining table at all? Wouldn’t a reading area with shelves, chair, desk be better?

Yes, that’s exactly supposed to be the area on the west side... why we are putting the dining table there now... good question, probably for the same reason we once got one in our current apartment: what if guests come, etc. Such silly questions you suddenly ask yourself. The result is: when guests come, we just sit four or six of us in the living room. Bigger “events” happen mostly in summer, then you can be outside. So we got rid of the dining table again and use it as a desk, which in turn is only used to “carry” my laptop... no one ever sits at it to work (which might be different if the table were directly in the living area and not in a separate room).

We are only two too and cook less often than families. Still, cooking is important to me, so you should consider whether rare also means passionless cooking.

Yes, it does mean that. It might change too, but at the moment it’s mostly “passionless”...

Then put a table/desk in the corner. Visitors come out with it. Ikea has tables that can be folded out or simple plain tables like those often used in offices, 4 legs, tabletop done. What do you use the hobby room for? Your hobby mostly takes place in the living area.

Then put a table/desk in the corner. Visitors come out with that. Ikea has tables that can be folded out or simple plain tables like those often used in offices, 4 legs, top finished

Yes, that’s a good idea.

What do you use the hobby room for? Your hobby mostly takes place in the living area

It’s for my boyfriend. He has so much model building stuff, you don’t want it lying around – especially since our cats would also end up breaking it playing with it.

would change quite a bit

kitchen where the reading area is
living area stays
kitchen becomes your hobby room and is separated by a large sliding door to the living room.
currently quiet reading corner
no sports equipment visible
in winter sliding door open and view of the TV

Kitchen where the reading is Living stays Kitchen becomes your hobby room and is separated from the living room by a large sliding door. Now quiet reading corner

Since I believe I read that and also otherwise it is nice if the reading corner is located in the west, I would -> swap hobby with kitchen. You can fit great tall cabinets and a kitchen unit around the corner in the niche created by the storage room, then in front an extendable round 80 cm table or a table attached to the wall facing the storage room. Man’s gaming room opposite with slanted wall as desired. Kitchen of course semi-open.