I have the exact same issue with 9.2 on my Ryzen 5 2400G, the interface freezes and no longer works, but the system is reachable through SSH and seems to work fine.
kodi_crashlog_20191207115249.log
All the logs are from the multiple crashes I have had in the mere minutes. I'm currently running 9.2, updated from 9.0.2 since it auto updated to that version and started crashing.