Look at the choice and control possibilities mentioned in the following except from Immersive Reader in Canvas: Improve Reading Comprehension for All Students

When building courses and creating course content in Canvas, Immersive Reader lets users:

  • Change font size, text spacing, and background color
  • Split up words into syllables
  • Highlight verbs, nouns, adjectives, and sub-clauses
  • Choose between two fonts optimised to help with reading
  • Read text aloud
  • Change the speed of reading
  • Highlight sets of one, three, or five lines for greater focus
  • Select a word to see a related picture and hear the word read aloud as many times as necessary

Also see:

All about the Immersive Reader — from education.microsoft.com

The Microsoft Immersive Reader is a free tool, built into Word, OneNote, Outlook, Office Lens, Microsoft Teams, Forms, Flipgrid, Minecraft Education Edition and the Edge browser, that implement proven techniques to improve reading and writing for people regardless of their age or ability.