Disk is almost full after restoring to factory defaults
The install didn’t do well. If you have a good backup, I would perform another erase install (or the first erase install if you just reinstalled the OS. Apple doesn’t define a factory reset, so we have no clue what that means unless you reference a written process you performed).


https://support.apple.com/en-us/HT204904


What makes an erase install is step 2 - format the disk. Your disk wasn’t formatted correctly. Specifically which of your disk1s1 and disk1s5 contains your user data is in question. You should only have one Macintosh HD - Data per Catalina system volume and not two.