Go to https://piefed.social/user/settings and choose 'OpenDyslexia' in the Font setting, halfway down the form.
This font looks odd to me but I'm told that it really helps some people. If you're one of those people, please let me know if you have any preferences around letter spacing or line height, etc.
Edit: PieFed also has Atkinson Hyperledgible
You know, sometimes people take what people say at face value to just try and be a helpful and friendly person. It's not something to be sarcastic about in response.