Memory showing deleted apps still taking up space

Hello Barbupanaitescu,

Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are still seeing some apps still showing in storage on your Mac even though you removed them. First, try running First Aid on your hard drive with the built in Disk Utility tool, as this can correct simple issues like you're experiencing.

How to repair a Mac disk with Disk Utility

Next, use safe mode to start up your Mac as it does the following things:

• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts
• Deletes font caches, kernel cache, and other system cache files

Log in to your user account, make sure the Trash is empty and test the issue while in safe mode and then restart normally and test the issue again.

How to use safe mode on your Mac

Graphics performance limited in macOS Recovery, safe mode, or Guest User mode

Cheers!

After using OmniDiscSweeper ( compatible with Big Sur ? ) not sure if the manual method will show much difference but give it a try https://discussions.apple.com/docs/DOC-250002781

Thanks for replying, Barbupanaitescu, and that additional info, it really helps! Since you tried the steps suggested and even reinstalled macOS Big Sur and still have this issue, please contact Apple directly for further assistance.

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Have a great day and thanks for using the Apple Support Communities!