Pulling in feedback from the FSE Outreach Program's Final Touches call for testing:

I clicked the “Aa” icon to open up font management just because I followed your instructions, but I couldn’t have found the font management easily without them. I love icons, but this is only visible with a label.

I've heard this from a few folks at this point and it's clear that this feature isn't easily discoverable. Perhaps we could consider it as part of iteration for design details: #53483 but for now I wanted to open an issue to gather this feedback.