Powerpoint (ppt) preview should be editable / predictable
Right now, the preview of a PowerPoint presentation does not look like the first slide in PowerPoint. It either should be predictable, what this slide looks like, or people should be able to edit the preview. Otherwise, it looks extremely ugly, especially in the Newsfeed.
H. R. commented
The preview of Word documents is unfortunately broken. For PDF files, however, the preview is good. Why is that? What would be a solution for Microsoft 365 files?