I have the same issue. Macbook shuts down at night.
panic(cpu 12 caller 0xffffff80147fea25): userspace watchdog timeout: no successful checkins from com.apple.remoted in 180 seconds
service returned not alive with context : unresponsive work processor(s): remoted heartbeat on bridge
service: com.apple.logd, total successful checkins since wake (134482 seconds ago): 13449, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (134482 seconds ago): 13449, last successful checkin: 0 seconds ago
service: com.apple.remoted, total successful checkins since wake (134482 seconds ago): 13431, last successful checkin: 180 seconds ago
Kernel version:
Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:21 PDT 2021; root:xnu-7195.141.6~3/RELEASE_X86_64
MacBook Pro (16-inch, 2019)
Sending crash reports all the time..