The current Delphi 12 release installs and works fine with Delphi 12.2.
If you want, you can also compile your own DLL with all the fixes, improvements and new bugs I have added since the last release.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
to https://blog.dummzeuch.de/experimental-gexperts-version/
The current Delphi 12 release installs and works fine with Delphi 12.2.
If you want, you can also compile your own DLL with all the fixes, improvements and new bugs I have added since the last release.