I’m telling you… get the Comply tips. Best money spent, hands down.
I had the same issue and went to the Apple support forum for suggestions. Literally hundreds of people recommended a specific memory foam tip from Amazon. Skeptical, I ordered them anyway. They’ve been the best thing to ever happen to me. Here’s a link, Comply foam Apple AirPods Pro earbud tips At first I got the assorted, has a small medium and large. Afterwards, I ended up just buying a medium 3 pack.
I had to switch mine out to the Comply foam ones
Same deal, when I would yawn they would pop out.
COMPLY Foam Apple AirPods Pro 2.0 Earbud Tips for Comfortable, Noise-Canceling Earphones That Click On, and Stay Put (Assorted Sizes S/M/L, 3 Pairs) https://www.amazon.com/dp/B088KPNKN2/ref=cm_sw_r_cp_api_glt_fabc_RW6VHMC7RX8CN0QGRMV3?_encoding=UTF8&psc=1
I have the Airpod pros and found that these foam tips keep them in place