Intel microcode proprietary drivers

I’m using “Intel microcode drivers” on my old laptop. May I trust them or it would be better to update the firmware bios?
Reading about Lenovo Uefi bricked by intel drivers (i’m really sad about that problem and I hope it will be fixed soon, possibly without matherboard sustitution), i would like to be sure that that drivers are safe…
Tell me I’m paranoid if you think so;)
Marco C.