Earlier quoted context omitted.
On the one hand, if you're editing a graphics file for a client that already uses Arial, you need Arial. Full stop. It doesn't matter if it's great or not. On the other hand, Arial is pre-installed not just on Windows, but Macs and iOS. And Adobe doesn't make e.g. Illustrator for Android or Linux. So what Creative Cloud app runs on an OS that doesn't already have Arial? What am I missing? Do they have something that…
I don’t know enough about Adobe Fonts and don’t trust their own writing about it, but it seems like it supports web. So I suppose it might be a way to get a consistently poor typographic experience on all platforms.
Still, Arial isn't poor. It's nearly Helvetica. It's a knockoff, but all it does is simplify some letterforms. It's not like it destroys the spacing or balance or weight or anything. You're talking as if it were Comic Sans...