On Fri, 8 Sep 2017 21:51:05 +0100, Good Guy
wrote:

This is a Windows 10 newsgroup,

It's also a Mac newsgroup where the problem is that the Macs can't handle
fonts as well as Windows does (and where some users are on the Mac).

"First off, if you use a Mac version of Office, you can skip the rest of
this page. Mac PowerPoint can't embed fonts, and it can't use fonts that
have been embedded by a Windows version of PowerPoint. That's a real pity
and a real impediment to cross-platform compatibility."
http://www.pptfaq.com/FAQ00076_Embedding_fonts.htm

But embedding fonts on Windows is also sometimes problematic.

"Next, if you're trying to embed OpenType (OTF) fonts, see You cannot embed
an Adobe OpenType font in a document in an Office program. Note that this
applies to fonts with an .OTF extension. Some fonts will appear in Control
Panel | Fonts with an "O" icon and identify themselves as OpenType, but
will have a .TTF extension."

This question will require someone who knows what they're talking about,
and not someone with an opinion (which everyone has) about fonts so it's
best that you and that nospam clod just leave the conversation sooner
rather than later.