mypy and pyright have been out for so long, and they're in a pretty usable state. Ignoring to use them leads to buggy code that shows its ugly head as unhandled rare conditions begin to manifest themselves. The compounding effects of these unhandled rare conditions ultimately ends the project when the lead subject matter expert exits the team.
UV is a year and a day old. It's not surprising that there isn't huge industry adoption yet.
I sort of have the impression that Ruff does have a reasonable degree of industry adoption. Certainly linting does.
There mypy alternative doesn't yet exist in a usable state
I'm not seeing anything worrying here?