I also used Remix 1 and 2 for a long time. It was great!
TanStack.com ran on it for a good long while. TanStack Start is where that journey eventually took me though (I missed TanStack Router for full-stack, better type-safety, client-first APIs, etc). I'm curious to see where Remix 3 goes, too, however it still feels early, it's a big ecosystem departure from React, which isn't perfect, but really great still and even if/when it's ready, from what I've seen, I'd probably switch to Solid 2.0 before considering Remix 3.