Additional features, settings, or issues not covered by specific Microsoft Teams categories
I had always assumed that the profile card was immutable, just something Microsoft surfaced its own way. However, it looks like we now have a couple of possibilities, firstly a registry modification (this has limits to the breadth of exposure, as its Win32 Apps only, doesn't affect web access) https://support.microsoft.com/en-gb/office/customize-the-profile-card-in-win32-apps-using-registry-keys-449afd21-6e5e-4b1f-8051-6515630d7537 More interestingly there is also an MS-Graph approach (MC217813), and I am liking this: https://learn.microsoft.com/en-us/graph/add-properties-profilecard I have not tried either approach to date.