If the user has not uploaded a profile picture in DelveUse Delve to your Microsoft Manage your 365 profile and discover and organize the information that is probably most interesting for you right now - throughout Microsoft 365. Official info from Microsoft, a gray avatar is displayed as a picture in this folder instead.
A profile picture can be reset in the SharePointSharePoint is the intranet solution from Microsoft. SharePoint Online SharePoint online (SPO) is usually included in your Microsoft 365 subscription, but can also be purchased directly. SharePoint Online has the advantage that there is no need to operate a separate server, but it lacks the customization options of a self-hosted installation of SharePoint.Although SharePoint Online is limited to core functions... admin center:
Setting the image placeholder synchronization status to 0 is the trick
After uploading, the image will be synchronized again and should be available in the above-mentioned profile folder in 3 resolutions!
Here is the official information about the service from Microsoft: