Yes, Moto Z2 Play does have fm radio.
No. Moto Z2 Play is not CDMA+GSM. It is GSM+GSM.
No. During our extensive review and usage, we did not experience any heating issue.
Yes, Moto Z2 Play does have VoLTE support, also.
Yes, Moto Z2 Play comes with Corning Gorilla Glass protection.