Hello @missionfloyd, this reads more like a Steam client issue than an issue with SteamOS as a platform, so I've transferred this issue report to the steam-for-linux issue tracker.
Looks like it's been fixed, it's working correctly now (Steam client 1666117138)
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
When deleting screenshots in the Media menu, deleted screenshots are still displayed, and can sometimes still be viewed. Or they may display a blank image icon. They finally disappear after rebooting.
This screenshot was taken after deleting the selected screenshot with ☰ Button > Delete.

Looking in

~/.local/share/Steam/userdata/{steamID}/remote/{titleID}/screenshotsshows that it has indeed been deleted.Steps for reproducing this issue: