Pixel 6 Pro dead after Android 15 update

I updated my Pixel 6 Pro a few days ago to Android 15. I had no problems with it until a few minutes ago when the phone suddenly died while using it. Battery was at about 45%.

I tried to plug it in but it didn't react. I tried the troubleshooting from the Google website but nothing worked so far. Maybe somebody on here can help me?

EDIT: The problem occured after enabling the new private space feature. It might be related to this as more people having this issue.