Axios what would you say would be a good backup/alt linux
based on standpoint of depenability/Gui/stuff working/support
There are many Linux distros that could work for you. Keep in mind that anyone's recommendation might be worthwhile or totally useless, depending on how close your needs match theirs. Now that I'm retired, most of my use is for email, browsing, streaming, and a few games.
Among the ones I've tested, however, one that impresses me more than most of the others is Ultramarine Budgie. It's a Fedora derivative, so it's well supported, and quite small, even leaner than Solus. It implemented the 6.0 kernel long before Solus did. And it installs .RPM files, in case you might need something that's not in its extensive repo. Its dnf package manager is very similar to eopkg. Ultramarine Budgie would probably be my choice if I ever needed to look for somethig other than Solus as a daily driver.
My only complaint about it is the number of unit files it enables at startup. But that's mainly because I'm used to Solus (which only enables 3 or 4). Ultramarine dramatically reduced the number of those unit files since the first time I explored it (from more than 150 the first time I looked, to about 120 the last time I checked). Given the number of distros that I absolutely couldn't recommend, that's a relatively minor issue.
I liked Ultramarine Budgie well enough to install it on my spare laptop and try it for a while as a daily driver, not just as a VM. And I still keep the VM available, as I like to check on it from time to time. Finally, keep in mind that there are 200+ available Linux distros, and I've only explored 20 or so recently. The absolutely best one for you could very well be one I've never tried.