To be honest I’ve tried long recording sessions 3 times only, and sure it gets warm but not hot to the point you described.

You’re right, I didn’t know you could disable 5G from the phone, I thought you had to ask your network provider. I meant as in “test with a sim that has 4G and not 5G enabled” Thank you for the info!

I never experienced that, even when recording 20+ minutes of video on my 14 Pro Max... But I do not use 5G since the price and coverage isn't worth it where I live. Try asking a friend for a regular 4G sim and test the same activities to rule it out.