After this above distro-sync process you will may see Discover updater applet telling you there are a few packages to update. There are not. To get Discover to shut up and behave run this command in Konsole as user not root:
$ pkcon refresh force
This is one of several reasons why we keep telling user not to use Discover to update a Rolling system. Do not use GUI package managers Discover or Rolling to upgrade your Rolling system this can break your system. If you do and your system gets broken do a fresh install.
Post-edit: Some known issues:
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The above regarding that Discover may complain about updates when there are not any. (
pkcon refresh force) -
The: warning: Found bdb Packages database while attempting sqlite backend: using bdb backend. This is covered in first post in this thread. (
sudo rpm --rebuilddb) -
Plasma desktop login sound is garbled or does not play at all. Garbled like it starts and then stops abruptly before it is finished.
Login sound not played (or not correctly) Plasma 5.19.3, KF 5.72.0
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There are some issues with VirtualBox discussed here.