The closest thing out there right now would probably be the Bragi Dash, so owners of that would be the people to straw poll to get an idea.
Except the Dash is very specifically engineered to remain in the ear. It's one of their selling points. Apple made no mention of this and at first glance it doesn't look like they had the same concern. For example, the Dash doesn't have parts that extend out and down beyond the ear itself like the AirPods do. Seems like a simple way to accidentally knock them out.
Seems everyone could wait until they try these on, instead of the hot takes that Apple probably didn't engineer their headphones to stay in the ears.
True, but I'm not spending $160 for the privilege of being the guinea pig.
Yeah - living in New York and taking the subway means I'm never buying these things, because if one falls out of my ear at any point during my commute I'll probably never find it again.
They will get stolen way before we have time to lose them.