I’m not sure WiFi 6 will be “obsolete” in even 10 years, let alone ‘soon’. I’m still using AC just fine at home. If your ISP sucks as much as most, you won’t benefit from much anyway. Maybe the new frequencies could help for apartment dwellers, or the intranet speeds could help if you transfer a lot to and from a home NAS?
My use-case is quite basic: a single combined home server/NAS, and two remote workers. My biggest obstacle, historically, was buffer bloat, which really really annoys me in video calls. I’ve got it to an acceptable level these days but it still isn’t ideal.
In a perfect world, I’d have a single home server box that does wifi, routing, NAS, jellyfin, DNS, movies, freshRSS, backups, and a few other tasks. And then I’d eventually build another and mirror data between the two in another location for redundancy. But I haven’t found anything that can handle it on mostly FOSS, long-term-security-updated software (10 years minimum), with no required subscriptions, with easily repairable or replaceable hardware. This seems to be getting really close, though! Official openVPN support for a piece of hardware would go a long way. I made a mistake buying a router in the past with a poorly supported CPU and I don’t want to make a similar mistake again.