PCLinuxOS - Easy, stable, newest software but still conservative(rolling release)
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You should really give it a go...
Incidentally I am resurrecting an old HP Compaq 6730s laptop with Intel 575 CPU and 3GB RAM. I decided to give PCLinuxOS a go after a long time. The live image booted from USB stick fine. Then I started the "Install Me". It shows a list of countries with flags and then freezes. It does not react to mouse or keyboard. The desktop otherwise works.
This was a KDE darkstar edition. Then I decided to try the XFCE edition. I started with the new image and the same thing happened. The exact same "Install Me" window was there and it froze. It was not related to KDE. I will try installing it in my main computer under VirtualBox later and I believe it will work there. PCLinuxOS devels should test old hardware. This HP is not even very old, only some 17 years.
Then I installed MxLinux XFCE edition and it works OK.
I experienced this problem :
https://www.reddit.com/r/MXLinux/comments/uynll4/problem_with_blank_screen_when_idle/meaning it is not perfect either but quite close.
I am now writing this using the HP laptop. Its Wifi circuit doesn't work but I have ordered a Linux compatible USB Wifi adapter.
I was able to login to Gitlab unlike when using my eMachines mini-laptop. The mini-laptop becoming obsolete is super annoying. It also has MxLinux and is otherwise usable but super-heavy internet pages with tons of Javascript are too much. Its 1GB RAM is enough for Lazarus development, compiling and linking and all, but not for internet any more.