Not everyone is well-versed in how to manager their PWA.
It may be best to have a page that clarifies a few things:
If you notice you're on an older version, close the app in all tabs on your browser. Wait ~10 seconds and revisit the URL. Repeat if necessary.
It's best to visit and install the app on a traditional browser like Chrome, Edge, or Firefox. Opening it and installing it in an in-app browser (like the ones in Rif Is Fun or Messenger) can create unexpected problems.
Not everyone is well-versed in how to manager their PWA.
It may be best to have a page that clarifies a few things: