Ideas for a low-maintenance house

- Aluminum-colored blinds instead of anthracite ones are supposed to not look as dirty from pollen

I can confirm that. Additionally, tile everything and install a floor drain. This greatly simplifies the use of the steam cleaner.

Completely without tiles, everything seamless

Joints and tiles are not a problem for me. Tiles are easy to clean. We purposely chose slightly irregular and textured ones where you can't see anything, no dust, no water stains, no hairs.

rather spotlights than hanging lights

True. But spotlights can also get dusty.

brick showers instead of glass shower cabin

They must be long enough.

rimless toilet bowl

Totally overrated. They need to be cleaned too.

rather hang a picture collage than many individual photo stands

Well, a little decoration isn't bad either.

in the kitchen no countertop that goes around the corner. So rather not such a big countertop and instead free. Store all kitchen appliances/dust catchers in cabinets

I don't understand about the countertop. But I just thought of this: countertops that are too deep on islands... you can hardly wipe from one spot. Dark surfaces, dust is visible there. Window frames ideally in light gray, dust and fly dirt is least noticeable there. Oops, I'm drifting off: we didn't pay attention to easy care, but to not seeing dirt immediately – what's behind the sofa doesn't really matter to us. Best not to build at all: no garden, no direct access to the house, no beds outside.

- send the partner out of the house with drilling, sawing, sanding, - vacuum necessary work, - do not sneeze into the flour

Build smaller. Less space means less dirt. As little decoration and plants as possible. Leave the house as little as possible (have deliveries brought) and do not receive visitors. Central ventilation and never open windows. The most important thing at the end: remain childless.

I am better at cleaning larger rooms. Nothing is lying around, nothing needs to be moved aside. The vacuum cleaner fits into gaps, etc.

By the way: lots of movement, lots of dust, little movement, also lots of dust

Water softening,
you will miss your lime spots

and if not with lime-containing water no dark bathroom tiles, even if they are trendy ... unfortunately, when lime-scaled they no longer look nice at all!

Smooth surfaces show fingerprints (e.g. kitchen furniture), but are also much easier to wipe clean than matte ones, which show less anyway ..

Dust and such settle more in carpets and do not swirl around, smooth floors in the bedroom for example lead more to dust bunnies. But both need to be vacuumed, and depending on the device/robot, it is more pleasant on smooth floors.

I also don't find tile grout bad, at least you can wipe the tiles and be done. You just have to find a good middle ground for floor tiles between very rough/slip-resistant = more scrubbing and smooth/glossy = easy to wipe.