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Yet another study found no advantages for three different fonts specifically designed for dyslexics, over a number of other fonts. https://library.iated.org/view/BOLLINI2020IMP

It is not even the case that the results showed an edge for one of those fonts, but not at a statiscally significant level. The consistent #1 font (although not at a statistically significant advantage level) was Times.

The only dyslexia-friendly fonts that DO work, may do so primarily because of looser spacing, easily done with other fonts.