6 out of 50 is a huge number in terms of annoyance.

It's the same reason alternative web browser engines like Ladybird are probably never going to take off. It might support 99.99% of web features - which sounds amazing! - but that probably means it's going to fail in some way on like 0.1% of sites which in practice is extremely frustrating.

Chrome no longer has the ability to run a number of extensions I like, and Firefox has abysmal performance at some bulk indexeddb operations. Safari isn't available outside Apple, and Opera and Microsoft are stuck following Google (along with all the other engines built on Chrome). There's no options left.

I hope ladybird makes it far enough that smart people start optimizing small features that rarely get used. Do that and I think it'll be successful enough to be used as a daily browser.

As much as the browser wars sucked, I can't wait for them to happen again. I'm already using 5 different browsers on mobile, since nobody wants to support containers, profiles, or organizing tabs with multiple windows.