Have you used it recently? Previous versions I would’ve agreed, but 5.0 was a huge improvement. If I didn’t know, I’d likely have assumed it to be a native feature.
I’ll take a look at Vivaldi’s approach though, I’ve heard good things about those features previously.
If you want vertical tabs with the ability to organize them in trees I suggest the Sideberry extension. It legitimately makes me nervous that the functionality would ever go away, it improves my productivity so much.
You can bookmark trees, collapse them, search them, load/unload them manually, I could go on. It makes it easy to organize dozens or hundreds of tabs. I have some trees for emails, news, forums, projects, etc. When I’m done just fold it up: the top tab bar can hide tabs that aren’t in the active tree you’re using, so you can still navigate the tabs normally.
GNOME always seemed like an odd choice considering how little customization is available. It feels like a prescriptive approach, you will use your computer the way GNOME feels is appropriate, whereas KDE tries to accommodate however you want to use your computer.
3 or 4 years, including on Nvidia machines. I’ll admit it took fiddling to get working awhile ago. Nowadays I use my desktops AMD iGPU as the main display driver and offload the rendering to the Nvidia card for intense programs or games, best of both worlds.
The moment that shocked me was when printers, network cards, and even motherboard integrated Ethernet didn’t work on Windows without driver downloads but Linux was plug and play. Full reversal of the situation.