

I do my backups manually.
As I have run unsuported Mac installs for the last 20 years, I started a long time ago, automatically partitioning my OS drives and making storage volumes to work off of.
The storage volume in the computer will have subfolders for the type of data - music, video, photos, etc.
When my storage volumes fill, I will pull my latest backup drive out of storage, hook it up then go into each storage subfolder, sort by date and add everything that’s newer than what’s in the backup drive. (which is actually how Apple’s Time Machine backups work - incrementally sorted by date - but I’ve had this method since the start, so I just stuck with it)
I just make sure to take note of how many files/folders I’m adding to the backup drive and note what it has at the start, then at the end, as a double-check of it all, before I clear the storage drive on the computer. (I did not do this and lost almost a years worth of music rips, waay back in 2003. Rebuilt the music I lost then iTunes threw a wobbler and lost the library for me. FML…)
The longest backup will ALWAYS be the initial one if you’re dealing with a first time backup. The rest, once you work out how to organize your files, is academic.
What I’ve found is that your tastes will change, you grab content you think you’ll want to hold onto forever… and then years later, you realize it’s low-bitrate, low-resolution, too pixellated… whatever… and you decide to delete it.
With the software doing the backups for you - it’s too easy to just let it rip and go have dinner while it works and you end up with files that you’d otherwise get rid of. Part of being a data hoarder is not keeping everything forever. There’s a ton of garbage online. Tastes change as you get older… You want to curate that shit so you can keep what’s most important - like family stuff.
And really good porn.
As I almost got banned on Reddit for pointing out, Kirk stated he was willing to accept firearm deaths to protect the 2nd Amendment, he also said that executions should be live streamed and thirdly, that children should be allowed to watch them.
Dude hit the trifecta.
Win, place and show.