[dmitriid]

> Still, would be awesome to see support in Firefox and Safari!

Both Safari and Firefox consider WebUSB harmful, and will not implement. Their reasons have been voiced loud and clear to the Chrome team (as they were voiced regarding many other standards).

Chrome, however, is the dominant browser and engine, so they dont' care. At all. It's now a "standard", and you will never other browser implementers' positions on web.dev (which is now a full-on unashamed Chrome propaganda vehicle).