A LOT of people’s PCs were bricked, including mine. No boot, just blank screen with blinking cursor. Thankfully Endeavour’s team was quick to react (quicker than Arch, as it happens) and published a full tutorial on how to chroot into your system and downgrade grub, but that already required a good level of knowledge and confidence in the Linux system as none of this was trivial, or intuitive for any stretch of the imagination. I woudl imagine most affected EndeavourOS users who were new-ish to Linux threw the towel that day. Wouldn’t blame them, it was jarring even for me, and it wasn’t my first chroot.