The "is this AI?" fatigue is very grating, but it seems inescapable even if you're not scrolling algorithmic feeds. It permeates group chats, DMs, and even personal blogs. I have no idea how we solve this!
Ironically, it seems that some of the more "anti-AI" people I know are more likely to re-share AI-generated content without realising it, because they aren't keeping up with what today's AI output looks like.