Suptig Phone Holder for Tripod, Action Camera Tripod Mount Adapter Compatible for iPhone, Gopro, DJI Action, Insta 360, Akaso, Mic, LED Light Photography Accessories

https://a.co/d/0cxg6osY GoPro to phone mount on Amazon

That is a GoPro style mount that every other action camera also uses. My club plane also had one mounted to the ceiling so I bought a GoPro with audio adapter to record my flights and comms for my own debrief and review. I guess you could use a mount like this for your phone. It's all GoPro style mounting. https://www.amazon.com/Suptig-Adapter-Compatible-Photography-Accessories/dp/B0DLL1TSYY/