Indeed it sucks. I created a Siri Shortcut to turn off the wifi and then activate it with the car bluetooth when I drive. It's obviously not the best solution but its only a very minor inconvenience now
I called Apple and was eventually able to open a case with high tier support. They have had me install diagnostic profiles in my phone to create logs of the issue. Been working with them on it for two weeks and Im currently awaiting their next response. The best thing you can do is call Apple and make them aware you also experience the issue.
I have been working with Apple since I opened this topic, they are aware of this topic and are working on it but so far it takes a very very long time! Did a lot of diagnostic tests for them also with the profile installed, made videos, time stamps, etc. So if anything happens I will give an update.