MacBook Pro stuck on login screen

Samurne wrote:

• MacBook Pro 16’ Intel 2019 Ventura. After passing credentials, loading bar stops at approx. 50%. What I already tried

diagnostics (cmd-r on startup) didn’t find any problems, says it’s all ok

• recovery mode disk utility, says disk is ok

• followed instructions to clear NVRAM

• reinstalled the OS, problem persists

• run the system in the single user mode - system is stuck on startup

My question is how do I diagnose the problem? What else can I do in order to fix the problem ?

Follow through— the last step is  contact Apple Support if no resolve

ref: If your Mac starts up to an Apple logo or progress bar

If your Mac starts up to an Apple logo or progress bar - Apple Support