This reply from before solves it temporarily quite easy:
I was having issues with the "Print to PDF" function in PowerPoint 16.14.1. Things looked great in PowerPoint and terrible in the PDF. Font changes, shape changes, image blurriness, etc.
I spent some time with the Microsoft Support yesterday. They learned about the problem and bumped me up to a Level 2 PowerPoint Tech, whatever that is. He called me back a few hours later and said lots of people are having problems with the 16.14.1 update.
Something about a "boundaries" issue. He showed me how to delete all my Microsoft Office apps and download previous version 16.12 from the following page:
https://docs.microsoft.com/en-us/officeupdates/update-history-office-for-mac
Would just be nice to get an update on the release notes as I don't update my PP at the moment due to that factor.
Hi Nutcollectr,
Thanks a lot! yes, I did exactly that. I deleted the newest version and downloaded the previous version and now it looks fine!
It´s pretty sad though that instead of going forward, we have to go back... ahhah
Thanks for your help!