I'm confounded by the mindset, on the part of Microsoft, that somehow the release of Microsoft Office Professional Plus 2024 will resolve the current update issue.
As DP_123 wrote, "all these started malfunctioning at the same time with the update that happened on 6/29/2024 (Version 2406 (Build 17726.20126).", which is true, of course, and yet two subsequent updates have not addressed the issue and/or failed to resolve it. It's just a guess on my part but it sure appears as if that build might have broken a registry entry for some users. In that case, a patch would be needed to restore functionality.
Having said that, it also appears to me that installing an entirely new edition of Office (2024) might also have absolutely no effect since that edition must have been in development well before the problematic Build 17726.20126 was released. Again, since some users are not experiencing this issue or have resolved it on their own, MS needs to issue some sort of patch for affected users who have not been able to resolve the issue.