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PSA: Remember to also check hidden directories you don't even know about for waste of space
(feddit.org)
Apparently, Prism Launcher chose to adhere to the idiotic principle of the hidden "trashbin", .Trash-$(uid), invented by Ubuntu. Even though it's based on QT. This can't be disabled. It accumulated 139 GB of literal Trash, fully replaceable, over time. Just ... why? There's even an open issue about this, for over a year, referenced multiple times. I guess I have another point on my agenda.
I did this yesterday while trying to make a backup before formatting and then updating my work rig and I'm SO GLAD that the decades have taught me to take knee-jerk/automatic actions that forces me to make entire volume backups; otherwise this last month of work life would have been AWFUL!!!
You can easily set it up to do this automatically with something like timeshift...
I recently switched to an Atomic distro (Bazzite), and they have made it so easy to rollback to previous commits without any additional software.
I use rsync on a cron job and it do it automatically every time i add a new drive or volume.