Which LR backups to remove?

[greg14]

Which LR Classic backups to remove?
I have seveal LR Classic B/U/s on my computer, can someone tell me which ones I can safely remove?
I removed an older back up last year and had to reconstuck the images.
I attached the current ones that I have from the Apple storge (documents) folder.
I will make note going forward which ones with the extention that I can savely remove.
These are currently tking up 23+ gigabits.
Thanks,
Greg

[greg14]

Here is the first image, it did not list in the post.

[JohanElzenga]

A real backup can always be removed without consequences. If you had to restore something after removing a backup, then that wasn't a backup. Backups are zipped, and there aren't that many of them in your screenshots. There are lots of (not zipped) catalog files in this list however, which makes one wonder if you are using different copies all the time and why. It looks like you are not using Lightroom Classic the way you should, with one single catalog.

[greg14]

By apologies, I did not receive a notice that you responded or I missed it.
Please bear with me, I am 81 years old and extremely happy when the computer turns on.
I only have one catalog, I do use portrait pro on occasion.
Unless I hit a wrong entry by mistake.
I attached my side bar of the catalog  showing the folders (Collections) , there are folders within most of the Collections Folders.
The last 3 backups were Zip Files only.

[JohanElzenga]

Folders have nothing to do with this. That is were your images are stored. This is about catalog backups. The Lightroom catalog is a database. It is like an address book. Your address book does not physically contain your friends, but contains information how to contact them and where they live.

Your second screenshot shows that you have several copies of catalogs (.lrcat files) floating around. A few of them have been used recently, which suggests that for some reason you changed from one copy to another. The screenshot does not show where these different copies are located, however, so that is all I can say. If you do not have a problem running out of disk space, I would suggest you leave them where they are because deleting anything could only mess things up if you don't know for sure what you you delete.