Applied the upgrade on my C2.
After two months of being plagued by the reboot problem that started after the application of 5.0.0.76, I had hoped this would be over.
My C2 appeared to be in the group that did not reboot automatic, so after a good night sleep, I played with the power button to achieve a proper reboot.
After that I left it on, connected to external power for a couple of minutes to finish some post-upgrade tasks.
After a manual reboot to have a fresh start, I disconnected the power and worked on some apps (Mail, Signal, Whatsapp) and got another disappointing crash after about a minute.