Or it's just Twitter nonsense like the cracked die hysteria. GPU drivers can't change the VBIOS, let alone the BIOS.
The only way I can see anything like this being feasible is if there's some sort of rare Radeon Software-Ryzen Master interaction that can trigger a crash at initialization when combined with manual CPU overclocking.
But it's more likely that, if there's any truth at all, that's just loading a bad GPU profile that has nothing to do with the motherboard. That's why the updater resets settings by default unless you specifically turn that option off..