Under Linux, can a certain folder be authorized to a certain user or a certain group separately? Other users or groups have no permissions on the folder, and the ownership of the folder remains unchanged?
For example,
has the folder test1

The permission is drwxr-xr-x and the owner is A

A wants B to have the same permissions on the folder, and other users do not have the same permissions. The owner of the folder is still A

How to do it from the command line? I'm a noob, thanks for the advice.