Kudos for going down the WebGL route and not the Chrome only WebGPU approach that most likely some people expect.
It is going to take at least yet another year, for WebGPU 1.0 to be available on stable versions on other browsers, Chrome still hasn't stable WebGPU on GNU/Linux, and it is already much far ahead with extensions that most likely won't be on the 1.0 MVP of the other browsers.
Member of Firefox's WebGPU team here. I'm curious what extensions you're referring to!
We're hoping to ship on Windows stable in the next couple of Firefox releases. Other platforms should follow in the following year. If you want, I'd encourage you to try out WebGPU on Nightly on Linux and see if you run into any issues!
It is going to take at least yet another year, for WebGPU 1.0 to be available on stable versions on other browsers, Chrome still hasn't stable WebGPU on GNU/Linux, and it is already much far ahead with extensions that most likely won't be on the 1.0 MVP of the other browsers.
Interesting article.