Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
In my experience, having to manually search for updates (via File > Account > Update Options > Update Now) isn't unusual. I rarely see a prompt telling my that an update is ready to install (unless I manually search). This could be caused by a user pattern. Maybe I use the Office apps "too much" during the working day, or there is another reason why the search for updates often isn't automatic. This is well worth reporting to Microsoft, for example in the feedback portal at https://feedbackportal.microsoft.com/feedback/forum/fb6d67e3-301c-ec11-b6e7-0022481f8472 .