If you mean the SharedArrayBuffer support, it has already been checked.
Sweepnet found that it works in Chrome. I googled and it seems that some godot games don't work in non chromium browsers even tho it run on my PC on edge and firefox, but a temporary solution is still to use Goggle Chrome.
I tried installing a plugin in godot although I'm not sure if it automatically fixes the issue. Maybe if you got time and try it again? Lemme know if it works or not.
Edit: I added a downloadable if it still doesn't work.
this means.