BUG #18054: Permission denied.

The following bug has been logged on the website:

Bug reference:      18054
Logged by:          Brigido Arana
Email address:      arasopero.1@gmail.com
PostgreSQL version: 15.4
Operating system:   UbuntuStudio 22.04
Description:

I can not make backup and restoration of my db by this issues:
baap@baap-notebookpc:~$ sudo su postgres
[sudo] password for baap: 
postgres@baap-notebookpc:/home/baap$ psql
could not change directory to "/home/baap": Permission denied
psql (15.4 (Ubuntu 15.4-1.pgdg22.04+1))

Can you help me to solve this situation?

Thank you very much.