40+; python sever side rendering + sprinkels htmx where needed; all works is fast and yes you can post forms without JS :D
edit: and is still use bootstrap css because it works
40+ as well; Django server side rendering and larger doses of React where we need more interactivity; but absolutely no SPA, client-side routing, etc. It's too much. And yes, bootstrap CSS (3.3.7 even!) because it still works.
40-1; I use Rust for almost everything.
For smaller projects I always test SPA approaches (with Rust and WASM of course), but for long-lasting important projects I would always go for boring, reliable, server-side rendering. Other client-side things remain optional (keyword “Progressive Enhancement”).