I have a spare SSD for just this reason. Whenever I feel the urge to try/test another distro, or do a different install of my current system “just to see what would happen if.” Sadly I learned this the hard way when trying different things with Solaris. 
And when that doesn’t do the trick or desperation kicks in, I connect my remaining winblows 10 drive and boot it. That changes my perspective rather rapidly. 
Even after 33 years now, I still cannot resist tinkering occasionally or trying new distros. Luckily, I have gathered enough hardware that I can leave my main systems alone. Even then, you could say I am a bit schizophrenic on distros as I run EndeavourOS on my main and secondary home systems, Fedora on my 2 systems at work, Solus on an old XPS 13 I enjoy playing around with, and Debian on my servers. Plus a virtual server to test many other distros when I feel the need.
Yeah, I need professional help. My wife strongly agrees.
If you are using old, weak hardware, the possibilities are reduced.
Warning: You may find a new one!
i won’t argue,KDE is very nice ,but I’ve tried it and my PC is just noticeably slower.
GNOME …I’ve got absolutely no interest in thank you
XFCE for life 
( or until i can upgrade PC )
I work for a major financial institution in North America and with a smaller world wide footprint.
I have a stock of more than a few laptops ranging from Dell 5680’s and Lenovo P1Gen5’s as restricted use (developers and people that need the extra resources to do their jobs, data analysts, active traders jobs like that) and I have a MUCH larger stock of the standard Lenovo/Dell laptops. Lenovo T14G2/4 and 5’s, Dell Latitude 5431/54440/7340/7540’s, Lenovo X13Yoga’s and X1 Carbon’s - all the latest of last years model’s.
IF I feel like testing out a distro, I grab one and download an ISO, install it, get it working, play with it whatever I need to do to determine if I like it and it would work for me ./.. or not.
I found EndeavourOS in this way. Installed it first on a 5431–got the dual video cards working easily using the EndeavourOS discovery pages and that’s ALL I had to tweak–everything else just worked out of the box. I installed steam and an old DX9 game (The Incredible Adventures of Van Helsing 3). That worked fine for a month or so. The I thought WHY NOT do this with one of the 5680’s-so I did and now I play Triple A games on EndeavourOS via steam WITH DLSS—roflmao.
I love my job, I have some days I just do like maybe 5 tickets and then I play games, watch Netflix and or read a book for the rest of the day.
Don’t get me wrong, there are plenty of days/weeks that go by and I am just busy enough that I cannot play at all but, time goes by quick and there is very,very little stress, so, all in all the perfect job.
'Cept they won’t allow me to curse my head off like a sailor..so yah, that’s been kinda hard. SIGH..NOTHING is EVER perfect (giggle)
KDE does slow some PC’s down.
I got a very recent system. So I do not notice.
I DID notice on my old -7 2600K though.
The 8700K was good, not much difference than my current PC as far as KDE goes that is. The new one is WAY better for gaming and encoding for sure.
My favorite of all time was fluxbox/openbox–with gnome or some other desktop services running under it. I LOVED fluxbox way-back when (I was dual booting Debian and windows 7 or was it XP at the time I did the fluxbox/openbox thing)–it is just SO TIME CONSUMING to get it all setup that I want a drop in install and basic config then use ti kinda DE at this point in my life.
I like XFCE, the old gnome2 and under (I do not like gnome 3), MATE is OK, I didn’t mind it to much, I tried Enlightenment, WindowMaker, NeXTStep- that one brings me a ways back, and TWM away back before the year 2000 I believe.
My very first Linux introduction was Red Hat 2.0-not CentOS nor Fedora NOR RedHat Workstation, just Red Hat—when everything Red Hat was still open source and non-commercialized.
I wish now, that I stuck with Linux and kept learning all throughout my years. IF I had I’d be supporting LINUX right now instead of Winblows.
To put a positive spin on it my job is one of THE most secure jobs in the world because of a one thing. I support Windows and Windows is never stable 
