This happened to my Samsung S23 after the update too. The thing would black screen spontaneously following the update. At first it would respond to an hard-rebo

This happened to my Samsung S23 after the update too. The thing would black screen spontaneously following the update. At first it would respond to an hard-reboot, then repeatedly complain about Google Play Services crashing, and eventually black-screen again. After hard-rebooting it a few times it no longer even responds to the hard-reset key combo.