I no longer am even able to see shorts, they don't get suggested to me.
However, this is an extreme nuclear option and also disables the entire 'Home' and for-you type content. You can search and watch videos, but it flips it so it is 100% intention driven. Which means discoverability and browsing is non-existent. You're still able to see your existing subscriptions but that's it.
It's REALLY helped me disconnect from the addictive dopamine of the infinite, short type formats. YMMV