The ideological issue (which you probably don’t care about) is that it pretty much requires proprietary (non-FOSS) drivers which run in kernel space and so in theory have complete access to all data on your computer (but then so does Intel ME). This is the main reason I personally will never use NVidia cards.

The only meltdown I’ve had with Linux occurred on a minor rev-level update to Debian that plugged some hole in the kernel the NVidia proprietary driver was crawling through. I had used Debian and an NVidia proprietary driver for years on an ancient motherboard. Then suddenly that “solution” disappeared. I had to replace the whole machine. Yeah, it was time. No, I wasn’t ready. I don’t know whether I should have been more pissed at Debian or NVidia, but I’m still on Debian. After the kernel update, X11 reverted to a default driver, and no install, uninstall, reinstall combination of the proprietary drivers seemed efficacious. I’m sorry I don’t remember the exact software rev-levels and drivers involved. All notes I took at the time, if any, were lost in the subsequent crash and recovery from incompetently trying to roll back the kernel update.

This is probably NOT what you had in mind. What I use for launching apps under Gnome 43.9 is a traditional file manager. Historically, nautilus was Gnome’s file manager. I note that Gnome still has a file manager, but they don’t call it that. Over time nautilus has been gutted of a lot of its functionality. Thus, I have switched to PCManFM, which is a lightweight lookalike. I autostart it in my Desktop folder, which holds a handful of *.desktop shortcut files. I like the look of the “Icon” view mode because it reminds me of the old Windows 3.1 desktop. Alas, there is no grouping like what you’re hoping for (so far as I know), but you could create shortcuts to other *.desktop folders. PCManFM displays a tabbed window, and you can drag and drop icons onto folders on a window, and between tabs. I launch apps by double-clicking icons.