Electrical plan in order - experiences

I also notice the large gap in the kitchen:
Why not move the wall island closer to the kitchen unit and at the same time change the double-wing window to a single-wing? Or make one wing fixed glass and place the kitchen island in front of it. Or have a simple window and next to it on the right the floor-to-ceiling window. The island would then have a counter with two bar stools facing the room opening.

We have already gone through this topic, we deliberately decided on it. Now it's really only about the electrical work for me.

The shower is now estimated at 1.2sqm. One should easily be enough.

It is 1.7sqm. But you are probably right and one is enough. I am a layman in this field, that’s why I’m asking. Thanks!

The kitchen topic may be over, but is the displayed plan the real plan? Who else is supposed to judge your lighting plans? But if you are as resistant to advice there as with the row spacing of more than 200 cm, then the discussion is unnecessary.

Oh. My. God.
So first of all, SPOTS CAN also create nice lighting in the living room or bedroom, but with your €11 ones, that won’t work. First of all, they are warm white – get cold white for bathroom/kitchen. 2700k is already very yellowish. I would go towards 3000k.
380 lumens is outrageously oversized. With that number (of lights) you won't be able to walk through the house with your eyes open anymore.
I have the feeling you’re trying to build some kind of designer hut with all these things. Has your electrician seen and approved this plan?
I’ll start at the bottom... Kitchen 5 units are enough. 3 in a row above the sink and two others offset to the left. Add a normal dimmable ceiling outlet above the island, provided you don’t have a hood above it. Otherwise 2 individual spots above the island... They don’t necessarily have to be in a row... Make sure the lighting above the island is switchable separately. By the way, with the way you positioned the spots, they will cast a shadow when you are working on the countertop.
Why a data socket next to the sofa?
I would also have planned wall outlets – for example left/right of the dining table.
Completely scratch spots in the living area and just put in a ceiling outlet. You don’t need professional lighting there; you just want to sit comfortably on the couch.

Guest room bottom left? Double socket next to the door looks terrible.
I would have arranged the sockets/data sockets at the closet in the middle.

Hallway...
Double socket next to the entrance door doesn’t look good.
4 spots are enough – 3 in the middle and one towards the entrance door. Wall outlet at the back left.

Where is the distribution supposed to go in the utility room? Above the house entry? I don’t understand the drawing... It’s quite tight for all that. The door on the right could be a problem too.
No spots there at all?

Bathroom enough with 2 spots and one wall outlet.

I don’t quite understand the stair lighting... It looks all over the place?
Outdoor lighting is completely missing?

Upstairs... What the hell do you want with 4 sockets at the bed?
Scratch all spots. One ceiling outlet is enough. Same in the wardrobe.
3 sockets next to a door look even worse than 2... What do you want with 3 sockets there? One is totally enough for vacuuming etc. Plan rather 2 switchable sockets in the middle of the cupboards for possible internal cupboard lighting.

Bathroom I would have taken 5 units. 1 over the toilet, shower, and 3 lengthwise over the bathtub + wall outlet at the mirror.

Room bottom left sockets/LAN/TV again in the middle of the wall.
Room top left below the bed might be tight... More on that at the end.

Hallway 3 spots are enough. Simply center and one in the "corridor".

So, just quickly skimmed through the whole thing... If you really don’t want to spare any cost, then go to a lighting planner. They will tell you exactly, but then your spots will cost more like €100 than €10. We ourselves also only use the cheap ones from Amazon, but with the right values. Unfortunately, you might have to make concessions on appearance.
By the way, there is a maximum of a 5-gang strip – meaning that in many places you have "two frames" next to each other. A two-gang and a four-gang. Since much is behind cupboards or such, it’s not so bad, but some are still bothered by it. Especially in the room top left on the upper floor, it won’t look nice and could also be quite tight with the bed. Your planning at the moment is more quantity than quality. I also find the number of sockets partly oversized.