SDL3 is something I've been keeping an eye on, but at least one thing that held me back from diving into it was SDL_Mixer (audio library) was not updated to a release version for SDL3 until I think a month ago? I need to get back to it but lately I've been messing with SDL2 + wasm stuff using emscripten.

SDL3 doesn't support bindless resources and the plans to do so in the future are very loose[1].

[1] https://github.com/libsdl-org/SDL/issues/11148#issuecomment-...