I still use the 3.5mm headphone jack over Bluetooth, because of the price of Bluetooth headphones, and also not having to ever worry about battery life. The only downside for me is that I can't use the headphones, and charge and walk around, but that's a lot less annoying then the other things. And with Bluetooth, there tends to be brief pauses (<1sec) where I can't hear anything.

I also use my phone as my computers webcam. It's way better wired than the wifi for me (which honestly shouldn't be true, but).

I almost never use wireless charging, because it takes longer to charge, is everyday inefficient, and most people don't own wireless chargers. And even if they do, it's never in as many places as normal chargers. On an old phone, I ruined the port and had to only use wireless charging, and it was so annoying.

And app development is so much nicer when you have a USB connection. When I lost the ability to do so, coding was a good amount more work

I use the USB connection every day to do iOS development. A high bandwidth reliable wired link is a very nice thing to have for dev.

They can sell developer phones if needed. The percentage of developers probably is not even 0.001%