There are discords where users offer each other advice. That said, many of the tuning parameters require the doctor to set them and if you make an appointment you can talk over the problems and get them to adjust the pressure or whatever.

> That said, many of the tuning parameters require the doctor to set them

No, they don't. At least not on a Resmed machine. You just have to enter a special mode to change them. On my machine that's holding down 2 buttons for a couple of seconds.

> if you make an appointment you can talk over the problems and get them to adjust the pressure or whatever.

I'm glad you had a Dr that did this for you. It is not the universal experience, and it definitely wasn't mine.