Tab groups is what made me drop Chrome on mobile. I don’t care if it’s an option, but it’s not just the default now, it’s the only option on Chrome mobile.
I’m using Firefox for both mobile and desktop and I cannot believe how much better they are than Chrome now.
And the thing that made me completely drop Chrome from desktop was the forced sidebar search. I implemented a complicated workaround twice, but the third time it broke I just had enough.