I had used the OS below quite comfortably for a while.
Edition Windows 10 Pro
Version 21H2
Installed on ‎11/‎08/‎2022
OS build 19044.1889
Experience Windows Feature Experience Pack 120.2212.4180.0
Last weekend I was forced to install four new updates:
- KB5015684
- KB5023696 (showing as Security Update in the Control Panel)
- KB5022502
- KB5020872 (generating the entry "Servicing stack 10.0.19041.2664" in the Control Panel)
The OS changed to
Edition Windows 10 Pro
Version 22H2
Installed on       ‎11/‎08/‎2022
OS build              19045.2728
Experience         Windows Feature Experience Pack 120.2212.4190.0
I uninstalled update 1., as already done in the past multiple times, and got back to Version 21H2. However, this time Build and Experience did not return to the state prior to the installs.
OS build              19044.2728
Experience         Windows Feature Experience Pack 120.2212.4190.0
I proceeded to uninstall KB5022502, but there were no changes to Build and Experience. Also, to my surprise, a new update was installed in the process, namely, KB5015730 from August 9 2022. I uninstalled this one too. Again the uninstall was not a mere uninstall. The update was replaced by an older update (KB5004331 from August 11, 2021). I had never noticed this before, that an update is replaced by another update upon uninstall.
Since my goal was to restore the 21H2 Build and Experience prior to the forced installs and given that it is not possible to uninstall Servicing stack 10.0.19041.2664, I proceeded to uninstall KB5023696 (Security Update). Finally the Build reversed to 19044.1889 but the Experience did not change.
A week after my eyes still hurt like hell without any sign of improvement. A couple of questions. It looks like new security patches generated a new Build. What are "Servicing Stack" and Windows Feature Experience Pack? Can these affect the visual experience? Is there a way to restore an old Experience Pack? Thanks.