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 tried a lot of different tab management systems. Multiple tree tab extensions, a couple that build off the built in container system, a few different non plugin browser tweaks, and some random other crap for stacking or deactivating idle tabs. None of them fully feel right for me.
I forgot what the current thing I’m using is called and I left the computer at work but it groups tabs into workspaces and has some sort of container integration I haven’t fully investigated. It seems lacking performance wise though.
I generally have around 1500 tabs at any time for various topics of research, news or updates for various things. More often than not I find horizontal tabs to be a hindrance and the only thing that could make them worse is if they shrank to triangles and made a sawblade like chrome tabs.