Now, I am all for it except the fact that I've heard that some people have actually recommended the wayland protocol + wasm to be a better alternative really.

And I personally feel like (I may be wrong) that at the end your proposal and the wayland proposal might be the same..

The problem with wayland protocol/your proposal is the fact that such things have already been tried (java applets) and they were insecure, and accessibility was a mess, so reverting back to it does feel like a massive chaos since javascript was created to solve that problem..

I am not a js advocate, honestly I wish that ephemeral running of apps cross platform becomes genuinely easy (in my mind nix-shell comes) There is htmx which is nice too I guess but I think I still need some js to sprinkle in some more interactivity/animations.

Astro with htmx / islands architecture kinda feels the best, imagine using svelte/vue/react and htmx+golang in the same project..