You can try a DFU firmware Revive to reset the T2 security chip & system firmware.
I suspect you have a bad Logic Board with that error. Run the third party app EtreCheck and post the complete report here so we can examine it for possible clues. I bet you will see a lot of Kernel Panics listed, probably a lot involving the T2 security chip which will be referenced by "ProxiedDevice-Bridge" panic logs.
You can try running the Apple Diagnostics to see if any hardware issues are detected. Unfortunately the diagnostics rarely detects problems even when hardware issues have been confirmed through other means.
Before you do anything else.....make sure you have a good backup now while you still can. If the Logic Board is bad like I suspect, then you may not get another chance. Make sure to keep frequent & regular backups since that is the only way you can recover your data in case of a hardware failure.
FYI, the MBPro 16" (2019) has an extremely high rate of Logic Board failures. There are numerous posts on this forum recently where people have had their Logic Boards replaced....even the replacement Logic Boards have been having issues. I don't recommend spending any money on repairs....the money spent on repairs is definitely better spent going towards a replacement laptop.
