My wife has an iPhone 8 (iOS 16.5). Her Airdrop does not see anyone, ¡°No People Found¡±. Her phone shows up on my iPhone 7 and my iMac (Catalina 10.15.7). I can send her photos by Airdrop from my phone and I can send her photos from the iMac. Her Airdrop is turned on ("Contacts Only" - even tried ¡°Everyone for 10 minutes¡±). Bluetooth is on. I rebooted her phone as well. Nothin¡¯.
I don¡¯t know what else to try.
Paul