I am using Ubuntu 20.04. It was freezing once every day, however a restart was a good solution for it, and then it worked fine. Last time I was trying to open the Settings app, but there was no response at all. I restarted it and now it doesn't boot at all.
Ubuntu boots to a black screen with this boot message:
/dev/nvme0n1p2: clean, 374354/31227904 files, 13694991/124895488 blocks
[ 3.735374] usb usb1-port14: disabled by hub (EMI?), re-enabling...
[ 4.605961] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS