interesting answer from ChatGPT, any comment from apple dev? :
If you haven't received a resolution from the Apple Developer website, there are a few other steps you can try to resolve the issue with your MacBook Pro crashing when connected to an external display. Here are a few suggestions:
Check for software updates: Go to the Apple menu and select "Software Update" to see if there are any available updates for your MacBook Pro.
Reset the NVRAM/PRAM: This can help resolve issues with display settings and connections. To reset the NVRAM/PRAM, shut down your MacBook Pro, hold down the Command + Option + P + R keys, and then press the power button to start up your computer. Continue holding the keys until you hear the startup sound twice.
Try a different cable or display: If the issue is with the cable or display, try connecting to a different cable or display to see if the issue persists.
Check for hardware issues: If none of the above solutions work, it's possible that there may be a hardware issue with your MacBook Pro that is causing the crashes. In this case, you may need to have it serviced by an Apple-authorized repair center.
I hope these suggestions help resolve the issue you are experiencing with your MacBook Pro. If the issue persists, you may want to consider reaching out to Apple Support for further assistance.
JamesQU
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panic(cpu 4 caller 0xffffff80074d7941): userspace watchdog timeout: no successful checkins from WindowServer in 120 seconds
service: logd, total successful checkins in 189095 seconds: 13924, last successful checkin: 0 seconds ago
service: WindowServer, total successful checkins in 189060 seconds: 13900, last successful checkin: 120 seconds ago
service: remoted, total successful checkins in 189095 seconds: 13922, last successful checkin: 0 seconds ago
service: opendirectoryd, total successful checkins in 189095 seconds: 13923, last successful checkin: 0 seconds ago
service: configd, total successful checkins in 189095 seconds: 13923, last successful checkin: 0 seconds ago
Panicked task 0xffffff94f5d12620: 3 threads: pid 137: watchdogd
Backtrace (CPU 4), panicked thread: 0xffffff9029396598, Frame : Return Address
0。。。