originale wrote:
The only way to delete them was to consciously do it.
That is not true. It is very easy to accidentally delete a file no matter how careful you may be. It has happened to me several times over the years and I'm very careful. Plus some apps or utilities may delete files without placing them into the Trash.
If you are using any anti-virus software, cleaning/optimizer apps, or third party security software, then they may have done something with your file(s).
Did you remember to check the Trash?
Also, I believe if iCloud is enabled, then your normal Desktop, Documents, and Downloads folder may no longer contain your files as they may be relocated to a special iCloud syncing folder within your macOS user account's hidden Library folder. I don't use iCloud for my files, so I cannot say for sure how this all works or exactly where these files would be located.
If you turned off iCloud, then there are a couple of options that can be selected that can determine what happens to the data that was previously being synced to iCloud.
Only backed up to iCloud and it mirrors the lPtop
of course.
iCloud is not a backup option for macOS. Only iPhones & iPads have an iCloud backup option.
iCloud is a file syncing service that allows you to access shared files with any device connected with your AppleID. If you make a catastrophic file edit or deletion on one device, then that same catastrophic edit/deletion occurs to that file on all your other devices using iCloud.
You can see if your documents can be recovered from iCloud using the information in the following Apple article:
Recover deleted files on iCloud.com - Apple Support
I used to backup to a thumb drive
That is not a very good option since the quality of USB sticks is extremely poor. Plus many USB sticks tend to silently introduce bit errors over time as well and are much easier to lose than an actually external hard drive or SSD.
and Apple said not necessary with the cloud. Shouldn’t have listened
Unfortunately Apple support agents don't always fully understand users' needs or even Apple's own products & services. Apple promotes a lot of things making people think things work one way when in reality they work completely differently. I've seen a lot of discussions on this forum among very knowledgeable forum contributors regarding the behavior of iCloud and other services since Apple's documentation is sometimes very limited on details and sometimes even misleading & confusing.
People should always have frequent and regular backups of their computers and all external media (including the cloud) which contains important & unique data. Apple includes Time Machine backup software with macOS to make this easy for users, but there are also third party backup software & services as well.