After reading this blog post, going to grapheneos's site, and browsing a half-dozen or so pages that I thought might show me what it looked like... I cannot find a single image of it.

GrapheneOS team, I'm begging you... Hire or recruit one person with advertising or copy-for-public-consumption experience. Just one.

Answered 2h ago before your comment: https://news.ycombinator.com/item?id=47047720

Saving a click, it looks like any bare Android without vendor customisations. You just get extra settings like turning off network per app

I don't disagree that some screenshots might be good marketing