I’m trying to switch to Floorp right now from Firefox, where I have both the regular horizontal tabs, and a flat vertical list with the Tree Style Tab extension. I use the later a lot, and while I could keep this setup in Floorp, I like that the vertical tabs can be native instead of using TST. However, it just feels weird to not have horizontal tabs. I think I might miss seeing a bunch of my tab titles at a glance with it, but I have to use it more and see how I feel.
I’ve been using TST for many years now. One can read the title of the tab. It allows to have hundreds open, collapse them and keep them organised in a tree per topic (I can further organise them with Simple Tab .)
I cannot fathom how people just keep clicking on all open tabs, where the only thing they can see is the icon, to find the right one if they have more than 10 open because the title is no longer visible.