Show user availability (groupware) on user profile page

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Is your feature request related to a problem? Please describe.
We use nextcloud at our company. People who work part time fill in their availability in groupware (/settings/user/groupware). This is nicely integrated with the calendar, which shows if a user is available if you want to make an appointment. However, I would like to also see this availability info on a user profile page. Currently I have to create a new agenda item and invite the user to see if a user is available that day, better would be to just see this info on their profile so colleagues can directly look up when another colleague is available.

Describe the solution you'd like
The overview of user's availability should be shown on the users profile page for all other nextcloud users to see.

Describe alternatives you've considered
Alternatively we can create a 'magic calendar' with availability of people (based on groupware settings) which can be shown/hidden in the calendar UI.

Additional context
See screenshot below for current Nextcloud availability settings page. Please add a render of this info on the users profile page.

Start with the existing availability settings at /settings/user/groupware and the user profile page. Determine how availability is currently represented and exposed, then make the overview visible to other Nextcloud users on profiles; verify that the requested availability information is shown there without requiring a calendar invitation.