[stephenr]

> It just didn't pan out to tablets and desktop computers. But it might not be too late ?

Safari has a caps lock indicator on password fields on every platform, and has had it for several years - at least since Safari 12 on macOS 10.12 (circa 2018), possibly longer, but I don't have an older VM to test on.

Gecko has an open feature request for this, from 2 years ago: https://bugzilla.mozilla.org/show_bug.cgi?id=1757348

Chromium has an open feature request for this, from 3.5 years ago: https://issues.chromium.org/issues/40722752