what's the actual way to update gpu drivers?

and if a new driver makes things worse, device manager, display adapters, properties, roll back driver. saves fighting it.

Don't leave this one to Windows Update — it hands you whatever old build it considers safe, months behind. Check which card you've got first in device manager under display adapters, then use the maker's own software, so the Nvidia app or AMD's Adrenalin, and let it fetch the current driver. Both will also do a clean install option, which is worth using if the last one was misbehaving. One caveat if it's a laptop with switchable graphics: generic drivers usually work now, but if something goes strange afterwards, the laptop manufacturer's own build is the one to fall back to.