I believe there’s a kerning issue in the newer versions. My wife uses Open Dyslexic in slack using the unsupported /slackfont OpenDyslexic command
But we just installed the updated version 3 on a new laptop and the kerning is huge. Massive spacing between letters and words
I’ve tested a few times on my personal PC, same issue and found that the issue isn’t there using OpenDyslexic v2