I came to the conclusion that your approach was not worth it, and I seriously considered it, what with all of the media converters needed for devices without pcie slots and such.
Having attic access and stud construction, I just ran a bundle of copper up to the attic through a perfectly-sized void space next to the stairs, fanned it out, and then drilled down through the top plate of the walls of each room and fed copper down into the wall. A drywall saw, a hooked stick to fish it out, a couple of old-work brackets, keystone jacks and nice faceplates later I now have at least 4x RJ-45 jacks in every room that anything with an ethernet jack can plug directly into.
Everything goes to two patch panels with a wall mounted 48-port PoE switch and 8-port 10-gig switch. With the swap of a jumper I can have 10-gig to any room so my NAS can sit in the cool basement and I can read my linux isos at 10-gig in my home office upstairs.
Ancient Chinese secret that the networking snobs won't ever utter: cat-5e is PERFECTLY CAPABLE OF ROCK-SOLID RELIABLE LINE RATE 10-GIG at normal single-family home run distances. Aquantia, Intel, it doesn't matter. It works. Sorry if you live in a mansion.
Sadly with a reinforced concrete and brick house I couldn't pull cables other then replacing existing ones in existing channels. (I really don't want to drill additional holes in floors and walls in concrete)
Stud constructions aren't that common in europe.
One limitation you have that fiber does not is running cables outdoors or running next to power cables used by solar panels.
Another limitation is media converter needed from ISP that you can optimize out :)
One advantage for your approach is much lower cost.
Having attic access and stud construction, I just ran a bundle of copper up to the attic through a perfectly-sized void space next to the stairs, fanned it out, and then drilled down through the top plate of the walls of each room and fed copper down into the wall. A drywall saw, a hooked stick to fish it out, a couple of old-work brackets, keystone jacks and nice faceplates later I now have at least 4x RJ-45 jacks in every room that anything with an ethernet jack can plug directly into.
Everything goes to two patch panels with a wall mounted 48-port PoE switch and 8-port 10-gig switch. With the swap of a jumper I can have 10-gig to any room so my NAS can sit in the cool basement and I can read my linux isos at 10-gig in my home office upstairs.
Ancient Chinese secret that the networking snobs won't ever utter: cat-5e is PERFECTLY CAPABLE OF ROCK-SOLID RELIABLE LINE RATE 10-GIG at normal single-family home run distances. Aquantia, Intel, it doesn't matter. It works. Sorry if you live in a mansion.