I have seen other users struggling with this issue persisting but this happens to me sporadically (maybe one out of every two boots). The LUKS prompt always shows up but whether the screen goes dark or user login shows up is hit or miss. If the login doesn’t show up, typically I reboot another one or two times and it works.
I have tried diasbling Nouveau and using Alt + Ctrl + F2, but neither has fixed the issue.
My device has an Nvidia GPU but I haven’t done the extensive Nvidia troubleshooting since it is still sporadically working.
I would be so grateful for any help!