Install 2022 and copy them over.
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In your Motion Graphics Templates folder, there is a text file called something like:
Delete that and launch Pr and all your factory mogrts will come back. If you have Ae installed or other versions of Pr, then there will be similar text files for those apps too.
The Motion Graphics Templates folder is a little hidden (it's right next to the media cache folders) so if you can't find it, post back here and I'll send you the paths.