Your best option is to install a Catalytic Converter Shield.
We install two different brands converter shields. The one pictured on the left is a CAT SHIELD manufactured by MILLERCAT. For Toyota Prius models, I believe these stainless steel MILLERCAT shields are a superior product.
MILLERCAT offers this shield in aluminum and 304 stainless steel. The stainless steel version costs $60 more than the aluminum.
CAT SECURITY is another company the offers these shields. I believe CAT SECURITY only offers their shields in aluminum. I actually installed a CAT SECURITY shield on my 2019 Toyota Tacoma after I had my converters stolen in 2022.