File activity shows empty for some users when the file is shared via a circle

Nextcloud version (eg, 20.0.5): 23.0.2 (with Circles 23.0.1)
Operating system and version (eg, Ubuntu 20.04): Ubuntu 20.04
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4.41
PHP version (eg, 7.4): 7.4

The issue you are facing:

Is this the first time you’ve seen this error? (Y/N): N/A; I’m new to Nextcloud. Yes, it’s the first time I see the problem; no, I’ve never seen it work in any other way before.

Steps to replicate it:

  1. As user Alice, create circle CoolPeople and add user Bob to it.
  2. As user Alice, create folder CoolFiles and share it with circle CoolPeople.
  3. As user Bob, go to folder CoolFiles and create a new text file.
  4. As user Bob, check the “Details” of the new text file, particularly the Activity tab.

Result: The Activity tab says “No activity yet”. If Alice goes to the file Details instead, the Activity tab says “Created by Bob a minute ago” or so.

Expected result: The Activity tab for Bob should also say something like “Created by you a minute ago”.

Have I understood something wrong?