My friend has updated from 12.2 to 12.3.1 and got startup blackscreens / crashes / no network access from many macos apps, like browsers and electron stuff, like discord/vscode. I asked him to run app binaries from terminal, and this is some log lines for people, that will search similar problem:
There is no much good info from google, so i post this problem/solution here. Reason is disabled SIP before macos update, so enable and disable SIP in recovery mode terminal to fix system internals. This is first time i see something like that from Apple updates, but i guess, if you use macos with disabled SIP, you should enable it again before any update, and disable after if you want, since there is no guarantee to get worked OS without SIP after updates anymore.
ERROR:network_service_instance_impl.cc(975)] Network service crashed, restarting service.
ERROR:gpu_process_host.cc(983)] GPU process exited unexpectedly: exit_code=9
FATAL:gpu_data_manager_impl_private.cc(448)] GPU process isn't usable. Goodbye.
There is no much good info from google, so i post this problem/solution here. Reason is disabled SIP before macos update, so enable and disable SIP in recovery mode terminal to fix system internals. This is first time i see something like that from Apple updates, but i guess, if you use macos with disabled SIP, you should enable it again before any update, and disable after if you want, since there is no guarantee to get worked OS without SIP after updates anymore.