Challenges:
File export limit (100 MB) - large presentations have to be split into parts, which is inconvenient; it takes time until you split the joints in another resource.
There is no preview of what the presentation will look like in PowerPoint after export — this complicates quality control and requires additional checks
Suggestions:
Increase the file upload limit or add alternative ways to download large files (e.g. via cloud links?).
Add a function to preview the presentation in a format as close as possible to PowerPoint (WYSIWYG?) to understand the final result before downloading?