This is happening as it looks like archlinux is renaming the kde 5 packages in preparation for kde 6 (which is supposted to be released in February, but arch is testing it earlier).
I got this last week and again a couple days ago with some more kde packages. Always accepted the change and didn’t have any problems (still no problems today).
I suspect you could be getting this problem now for 2 possible reasons:
- either cachyos is resyncing with the latest arch changes -> wait a little, it will fix itself.
- or your mirror is out of date with the latest syncs -> wait a little it will fix itself (or you could try another mirror).
Edit: another option if you don’t want to wait is to just install the packages from the arch repos (they will then again update automatically to the cachyos versions when cachyos is back in sync) -> you can do this easily with octopi -> click to sort the packages colors and the updates in the arch repos will all be displayed together in red.