Pixel 3A: widely praised for having a headphone jack
Pixel 4A: widely praised for still having a headphone jack
Pixel 5A: widely praised for still having a headphone jack
Pixel 6A: no headphone jack
Personally, I am not ready to give up the headphone jack. I wish I could go fully wireless, but bluetooth audio is too frustrating to use in many cases.
For example, my family has a bluetooth speaker. Managing and switching whose phone was paired via bluetooth was so annoying. There was frequently a mismatch between the device we wanted to be connected, and the device that was actually connected. We eventually reverted to just plugging our phones into the audio-in port of the speaker. Unplugging and plugging is quick, simple, and doesn't require fiddling with device menus. Guests don't have to endure the tedious "pairing" ritual. Of course, we have to have dongles anyway...
Another example is in rental cars. For one, pairing and switching devices with car media systems is dreadful. I've also had frequent problems, with multiple different phones and multiple different cars, where audio media and satnav announcements would not switch properly over bluetooth, such that the satnav announcements would get cut off. On the other hand, the "aux" port works flawlessly 100% of the time with no fiddling. Never travel without at 3.5mm audio cable.
If the wireless audio implementations were more user friendly, I think many current headphone jack holdouts would happily cut the cord.