How to delete "Other" files in macOS? 120GB!

Hi,

I have 120GB in "Other" storage on my Macbook 12 with Big Sur.

I've read many articles with advices and have no clue where these 120GB?

The following folders:

/Applications/
/System
/Users
/Library

In total use only 48GB from 250GB. But I have only 64 GB of free space. Where are other 120GB ?!

Please don't advice to check Downloads, Trash Bin, Caches, etc. I already checked all these folders.
It's sad that nobody can reply. So large company and no technical support...
In my company we always reply to our customers.
How to delete "Other" files in macOS? 120GB!
 
 
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