Security permissions

How repair this?
https://prnt.sc/u07zfc
In /etc no have these directories.

Can´t change permission for /root
https://prnt.sc/u07ywl

Stealth
I tested centos ubuntu20 debian10 have shadow and gshadow files

/root is the key system directory~ please do not modify its permissions manually.

The second why is red when we don´t need modify?

For the second question, we will check this