I turn the brightness on my phone as low as it goes, turn on night shift to get rid of blues, and read (white text on black background / dark mode).

Don’t read in continuous scroll; find a way to turn the page with minimum animation.

Read something you don’t find so compelling as to keep turning pages but enough that you’re happy to read.

I find history books most successful at the moment since there is often no desire by the author to build tension, suspense, etc that keeps you alert.