As far back as Habbo Hotel I saw fads of people making their icons / avatars all look the same. I saw it happen again in a wave on Twitter. But I've never seen that happen in the fediverse.
If you're looking for a face-based religion that will prop up your every whim as sacred dogma, might I suggest you JOIN...
The Church of the SubGenius
Church of the SubGenius Members-Only MastoDobbs.