These issues are definitely linked to the last update. Sadly, mods will again turn a blind eye.
BRO i got same problem today 14/jan/2023 ... i pick out my phone from my pocket to check notifiction then it suddenly shutdown but it start agian, but again it shut down. when I buy this phone i face this type of problem onces in a month but i ignore that now it complelty shut down, not even show charging led light show. Now what should i do ?
Please refer to the link first for troubleshooting the issue: [Zenfone/Pad] Troubleshooting - Phone can not boot up.
Meanwhile, please check the top right corner of the screen and kindly share the details requested in the PM inbox.