After installing Sublime Text 4 , write in the terminal

whereis subl

My result

/usr/bin/subl

Next

export EDITOR=/usr/bin/subl
update-alternatives --install /usr/bin/editor editor /usr/bin/subl 5

Next

select-editor

Select the desired number and press enter.

Start Sublime Text4 from the launcher as root

Enter as a normal user in the terminal

sudo subl

Enter your password
If you see an error

Username is not in the sudoers file. This incident will be reported

Next, open the file sudoers as root.
Since the sudoers file is read-only even for the root, it must be edited using the command visudo

visudo /etc/sudoers

And add this line to it

username ALL=(ALL) ALL

Where username is your username