Thanks for all the feedback on this thread. We have slotted this on our roadmap and will ship out a fix soon.
We are exploring changing the name of “Temporary Headers”, which is TBH, confusing to many. We will add some docs to explain why these headers are needed and added by Postman. Besides that, we are also exploring introducing a settings option to disable adding these headers.
It’s still in a design prototype phase, so I don’t have anything concrete to show right now, but I will let you people know as soon as I have something on my hand.