Hello!
I installed RC1 instead of Mageia6 and ran into several problems:
1) Some time after the installation of the system (10-20 reboots), KDE stopped starting. Those. after entering the password, everything just freezes and that's it. I reinstalled again (with formatting), it happened again. Then I started looking for the reason. As a result, "chown -R user /home/ user" + loading from user from init3 (startx) and switching via MCC SDDM -> KDM -> normal reboot -> SDDM -> normal reboot helped. Now everything is ok, it didn't bother me anymore. Magic!
2) Very big problem with displaying fonts! The fonts are "blind"! Not only does a 10pt font take 9pt (corrected by changing the dpi to 96 in the KDE font settings), but they are also fuzzy. Anti-aliasing settings do not bring relief. The monitor is identified by the system correctly, the parameters correspond to the passport requirements. Note that Mageia6 did not have such a problem - the fonts displayed amazingly.
3) The driver of the Radeon 7870 video card, not only does it not support 3D (this is in 2021!), It doesn’t seem to support 2D either, because I used to have youtube easily playing 1080p, but now it’s hard to reproduce 720p, taking away for this all system resources. You can't do that, you have to do something about it.
As a result: I seem to have won problem 1 on my own, while 2 and 3 require your help.
Installation clean. System language - russian.
Sorry to forgive my english. Thanks!