Zappingsbrew wrote:
My SSD has 154 GB left because the other storage category is taking the most. And the solution is to wipe the storage away. So, if I use Time Machine backup to back up my MacBook and wipe the whole storage and reinstall macOS and restore using backup, will I still have the other storage category???
User tip: "Other and What Can I Do About It ?"
https://discussions.apple.com/docs/DOC-5142
Empty your Trash — Delete files and folders on Mac - Apple Support
https://support.apple.com/guide/mac-help/delete-files-and-folders-on-mac-mchlp1093/mac
How to free up storage space on your Mac - Apple Support
https://support.apple.com/en-us/HT206996
See used and available storage space on your Mac
https://support.apple.com/guide/system-information/see-available-storage-space-syspf9b375b9/10.14/mac/10.15
Try something like OmniDiskSweeper for a GUI to get a good look at itemized file size and location:
OmniDiskSweeper http://www.omnigroup.com/more