On the trusty old Saab 340s decades ago, the only protection from inadvertent ground idle beta was a little metal guard that flipped into position on the prop levers after advancing them past ground idle.
for those not familiar, beta = pitch angle of the prop blade. set it too shallow, and you’re essentially placing a 2m or so diameter solid disc out on the wing with all the resistance that causes. cant be recovered unless feathered.