[the_snooze]

>There are also many FOSS applications, including LibreOffice, that are perfectly fine as replacements for Microsoft Office.

From my own experience dealing with MS Office-based government organizations, this is absolutely false. Sure, LibreOffice can read and write DOCX, XLSX, and PPTX files that are nominally interoperable with MS Office. But more often than not, MS Office mangles the formatting of LibreOffice-generated files. For example, text sizes, fonts, and element alignments in PPTX files get thrown off noticeably.

As another reply mentions, there's this nominal open-source standard. But the de facto standard is the MS Office implementation. I have to use MS Office instead of LibreOffice to eliminate the risk of document mangling when I send files over to the government people in charnge of my funding.

[delfinom]

Print PowerPoint to PDF.

And hope that both of you are using Adobe lol

Or make your presentations as a website and hope their browser follows the same standards, they don't have bad extensions or security policies setup that may break it too.

Can't really win in human friendly days interchange, because all this crap gets layered on due to humans having their own things going on.