Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
Peter Debik right. And one more thing, if you deploy Plesk in Cloud, Plesk could be behind Cloud' Firewall. So, you need to allow these ports in Cloud firewall too.