All my equipment is on 802.11ac, whatever number that is. I’ve had no need to upgrade. My home network is pretty simple, and the wireless link itself has more than enough bandwidth because the ISP uplink, and all the wired equipment in my house, is gigabit Ethernet.

If you’re buying new, unless you know you need features in the newer versions, just get whatever’s cheapest. If there’s no meaningful price difference, get whatever is future-proof.

WiFi 6 has been out for like 3 years now so unless you’re on a budget it might make sense to just go for WiFi 7. Of course you’ll need client devices to be 6 or 7 to take advantage but that’s doable on the cheap for laptops with replaceable M.2 WiFi cards. I upgraded both my laptops to WiFi 7 when I replaced my 3 year old u6 pro with a u7 pro, so I can now get around a gig to my nas. The only thing is that 6ghz barely goes through a wall for me so I need to be in the same room unless I want to fall back to 5ghz but it’s still nice to have when the situation calls for it. Plus if your phone isn’t WiFi 6 already your next one will probably be 6 or 7, so when friends are over with their new phones and laptops they get a nice low-contention experience on my WiFi.

My main reason for staying on the bleeding edge is the airtime efficiency upgrades unique to WiFi 6 and 7 which makes a big difference in crowded apartment situations the more people move on from WiFi 5.

I have Starlink gen 2 which only supports WiFi 5. After getting the Ethernet adapter and putting up a WiFi 6 access point almost all of my WiFi problems went away. I dunno if the problems were because of the Starlink implementation, or the older WiFi version, but for me it was a huge difference.