All the major motherboard manufacturers have or are in the process of releasing BIOS updates that address the problem of allowing SOC voltages to be set above safe limits by locking the max allowed voltage to a lower (safe) limit.
The 7800X3D CPU’s that are ‘blowing up’ are ones where the owner tried to overclock it beyond safe limits - and the BIOS allowed them to do so. It’s not an inherent problem with the CPU.