Century Gothic Font Missing on Imported PDF

[#1]

I'm attempting to export a PDF from Microsoft Teams app into Adobe for reviewing/comments/signing. The PDF is written in a business wide standard font of Century Gothic. When it is transferred into Adobe it seems to change to a different font which renders the document useless.

Any suggestions why Adobe doesn't allow the Century Gothic font to be used in the app?

*Using an iPad with IOS apps to work remotely.

[#2]

Furthermore, no issues with Adobe Reader on Windows using a laptop. This is only an issue on the IOS app.