Which.... Ignore ownership or not?

This question deals with the setting on Get Info for a disk or partition.

Many years ago I was told that if I had a disk, or partition, that will hold backups then I should set the Get Info setting to “ignore ownership”

However, if I was using the disk or partition as a boot volume, a clone, then I should preserve ownership and not check that box on Get Info.

Since it has been many years and my memory is far from perfect, I’d appreciate an education or a link on this setting. The info on Apple’s Get Help was not of help to me.

Thank you.

Always DO NOT CHECK “ignore permissions” unless there is a specific reason to do so.