Personally with ADHD and some 'tism I do have difficulty with reading / might have a bit of dyslexia but I don't find them improving my ability to read longer texts any better as "my eyes get fatigued" (don't know how to explain it). What does help myself is larger text, shorter paragraphs and larger line spacing.
Or you’re listening to a podcast and space out a few seconds. Then you skip back to listen again and zone out again. Rinse and repeat until you don’t care anymore.