Your biggest worry with something that’s connected to the internet are security updates and in general nobody will support a product indefinitely

Don’t know about indefinitely but Turris do so far, and that doesn’t look like it’s going to change any time soon.

Edit: Heck, they even offered hardware upgrades for previous releases, whilst still supporting all products with software updates.

People with knowledge who I semi-trust all seem to point at different devices for the wired and wireless part. Some even say you should split the router from the switch (so you can do a managed switch with vlans and stuff) but I will never use any of that and even my E4200’s can handle vlans just fine. I do get that using dedicated access points has its advantages but it does get quite a bit more expensive.

On the other end, a lot of brand names are now using Chinese chips in their routers and devices like the GL.iNet MT6000 seem to be one of the current favorites on the openwrt forums (and seems to be a very powerful device).
I think I’m still going to go for a separated setup but I’ve got no clue which devices yet. Fwiw, Louis Rossmann recommends some things.