That said, I can only remember two instances of that slightly inconveniencing me in the past, and both times I was inconvenienced by a Google-run website: once upon a time Google Earth refused to work, and once upon a time I couldn't tweak my Google Meet background. Both are no longer the case.
The biggest counterexample I can think of: WebUSB was critical to Chromebooks supporting external devices, but I can see why Safari might not want it. It has Firefox support at last, though.
Is that really something you need a citation on? You sure seem to have come up with an example of your own.
I can think of just one, USB.
Chrome was built on the premise that web standards matter. Remember IE 6?
The Prompt API is part of a real W3C standard: https://www.w3.org/2025/03/webmachinelearning-charter.html
It's not even chaired by Google. It's Intel, believe it or not.