I don't know if I'm posting this in the right place, so please move the topic or correct me if I'm in the wrong subforum.
Anyway, Opera just updated to v.80.0.4170.63 a couple of days ago, and as somebody who regularly has hundreds of tabs open, the UI change to make tabs and their favicons overlap each other, instead of shrink and compress as they did prior to this version, has made Opera unusable for me. My tabs are all thin slivers of grey, with vague hints of colour hidden between them, and are too narrow to even easily hover my cursor over and click on the tab I want.
Now before anyone starts saying "why don't you just use FeweR tabs,?", you browse your way and I'll browse mine. There was nothing wrong with the previous UI and no reason to change it, as it benefitted everyone and now it actively hinders people like myself (and I know I'm not the only power-user out there). Opera has in fact made a UI change like this before a few times in the past and each time I complain. A new version eventually comes along that fixes the UI so the tabs compress again instead of overlap, but some genius always messes it up again.
So long story short, devs, designers, or whoever, please fix the tab favicons so they compress and retain their full image as in the previous Opera version, instead of overlap as they do now.