I have an Outlet Surge Protector on every appliance including the garage disposal.
Three years ago we had a very close lightening strike that took out the Surge Protector for our digital dryer and digital gas stove. Those two Surge Protector saved me many hundreds of dollars in repairs, or thousands for replacement.
Amazon has good ones here: https://www.amazon.com/dp/B09NP7VSNK (I gain nothing from Amazon for this posting)