1. " this for me is better to handle root and not sweat since it is easy for a person to see the password when entering the pc and already with it they can modify or damage something."
---This is called human contruction attack, stay away from the bad guys :)
2. "in the shared folders when they open I can't see the thumbnails"
---i also have this problem, maybe you should change another file manager. :(
I am with deepin 20.2.4 and I am somewhat entangled with the permissions of the user sudo since with this I can modify files, create users, manage the managed disks, etc. this for me is better to handle root and not sweat since it is easy for a person to see the password when entering the pc and already with it they can modify or damage something.
Also in the shared folders when they open I can't see the thumbnails. I appreciate any help.