They are working on an OpenWRT Two at the moment which will be Wifi 7. OpenWRT runs on a lot of hardware and its a great way to extend the life of a router past the manufacturers patches as well as gain a lot of capabilities. I wouldn't buy a commercial router that wasn't supported by OpenWRT now.
Fot example from my ISP I can have two options for PPPoE connection, first is legacy IPv4 only but lacks IPv6, second is IPv4 but behind CGNAT and with modern IPv6. With OpenWRT, I am able to make two PPPoE connection over the same wire and have the best of both worlds.