The main issue is that it's so mainstream, it strongarms standardization bodies making them ineffective.
Chromium is so mainstream that developers think developing for other browsers is irrelevant, even putting notices of deprecation for Safari and Firefox.
W3C is on the brink of irrelevancy, because if it works on Chromium, why bother with the others? if W3C cannot enforce the standard.
EDIT: Typo
Hugging Face's spaces does this, throwing banners saying it only supports Chrome. Makes me throw up a little bit every time I have to switch over.
if safari dies, firefox won't be far behind, and by then there's no way a fork of chromium will be able to "keep up" when google starts pushing chrome-only features, killing ad-blockers etc etc etc
(not sure if any of this matters, though. will there even be any real people left on the web in a 5 years?)
I was told they were breaking adblockers, using ublock lite which complies with the changes I don't notice a difference. And even this change I could have switched browsers it didn't break the web.
There's some pwa features only they support, and that's a feature I think could actually benefit me.