Play a clone of Tetris
Tetris has suggested efficacy in attenuating development or severity of trauma and it seems to have a beneficial ongoing cognitive effect also.
Don’t get Tetris™️, get a good paid version that lets you buy it and doesn’t show ads or track you after buying.
I use the desktop mode of my phone when I want to multitask my laziness in multiple windows simultaneously. I can YouTube using vanced, scroll through Lemmy and read manga.