Doing more research, I found this in my log file when putting the display to sleep, getting repeated errors.
error 18:03:48.968770-0500 com.apple.AmbientDisplayAgent [ERROR] - Unable to create and lookup port "com.apple.CoreDisplay.master" => 1102
0 0x18d79fb58 CoreDisplay::Mach::Port::Port(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, CoreDisplay::Mach::Port::PortLookup) + 392
1 0x18d75ff5c CoreDisplay_Display_SetAutoBrightnessIsEnabled + 168
2 0x104012a44 setCompensationState + 60
3 0x104013ff4 main + 4852
4 0x18b91fe74 _xpc_connection_call_event_handler + 152
5 0x18b91e8f4 _xpc_connection_mach_event + 1376
6 0x18ba2c4c0 _dispatch_client_callout4 + 20
7 0x18ba48ed8 _dispatch_mach_msg_invoke + 468
8 0x18ba33960 _dispatch_lane_serial_drain + 372
9 0x18ba49c24 _dispatch_mach_invoke + 448
10 0x18ba3f244 _dispatch_workloop_worker_thread + 648
11 0x18bbd8074 _pthread_wqthread + 288
12 0x18bbd6d94 start_wqthread + 8
CEOpx
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Updating to 13.4.1 did nothing to address this bug. I'd have to imagine that Apple Developers are experiencing this themselves.