Revert tags
I have made some wide-reaching changes to my tags involving thousands of items that I regret and would like to revert. Doing so manually is not an option. I have complete backups of everything. What do I need to replace in order to regain the tag situation I had earlier? This is Zotero 6.0.30 running on MacOS 12.7.2.
Zotero automated backups have saved me. Also my Mac TimeMachine backups have allowed me to select the earlier version of a file I want. That said, you will need to, one way or another, need to carefully assess the amount of effort needed to fix the tag problem while retaining complete library records. I urge you to take some time to consider what is the best solution.
If it is useful knowing what I would do, I would manually work with the tags. You are still on Zotero 6. Zutillo may streamline your tag work. Someone else will need to comment as I haven't tried to use Zutillo to manage/edit tags.