Another option would be to duplicate your .obsidian folder and/or your entire Vault. Do tests, and then copy back the unaltered files, and remove whatever you found in the test version.
Personally, I keep my entire vault including settings in a git repository. So I can snapshot before I do any tests or major changes, and always have a point to return to if something goes wrong. But that’s part of more general advice to backup and snapshot regularly!