Yeah, these are pretty solid advice, would say that you should be safe with patch version updates, like from 1.17.1 to 1.17.4
Should be able to jump from 1.17.4 to 2.0.1 and from 2.0.1 to 2.1.3, etc. going straight to the last patch of the next version, but should go one by one minor version, paying close attention to those versions that have breaking changes in the release notes. And always backup and test before each version jump.
Having the ability to shut down the main instance of an app and run a secondary instance from backups without much hassle is the best feeling ever, I recently updated from Nextcloud v26 to v31, and having the ability to just go back to a working version if anything was wrong saved me from so much stress.