Answer #1:
1. In the Discord app, click the gear icon next to your name in the lower left corner
2. Under App Settings on the left, click Text & Images
3. On the right, under Text & Images , Click the switch next to Automatically convert emoticons in your messages to emoji to disable it.
4. Done
Answer #2:
You go over to Settings:
(It’s right next to your name)
Then you press on Text and Images
And then you disable the setting ^
Hope I helped >:D
~ 🍎 N e w t o n’ s a p p l e 🍎 ~