So. The fonts people usually mention for this are OpenDyslexic and Dyslexie.
https://dyslexiefont.com/en/typeface/
The problems:
• There is no scientific evidence that these fonts help people with dyslexia read better
• The anecdata is split, with some dyslexic people saying they make it easier for them, but some saying they make it harder
• These fonts are *ugly* and do not feel appropriate on slides
• Because they’re ugly, they’re probably harder for non-dyslexic people to read