Pick what a double tap, a triple tap and a swipe do on a message: reply (or edit your own), react with an emoji you choose, forward, save for later, copy the text or delete your own message.
Each gesture can keep Discord's default. Deleting always asks first.
Settings
Double tap, Triple tap and Swipe: the action for each. A triple tap needs a short wait after a double tap, so it is off by default.
Reaction emoji: the emoji the react action uses, unicode or a custom <:name:id>.