Generally no. Most of those variables are mounted RO now. Additionally you can factory reset the board and recover. There were some systems a while ago when UEFI first came out that didn’t correctly manage that, but that hasn’t been a problem for years now.
Uhm… Won’t
sudo rm -rf /*also brick your modern PC, as it also deletes UEFI variables that are always mounted rw for technical reasons?Generally no. Most of those variables are mounted RO now. Additionally you can factory reset the board and recover. There were some systems a while ago when UEFI first came out that didn’t correctly manage that, but that hasn’t been a problem for years now.