In addition to removing the distraction altogether, a friend recently showed me you can put your phone display into "Greyscale" mode.
This has an immediate effect of being less pop-y and engaging. Big red banners are meaningless. The lack of colors make you want to engage less. It truly broke a bunch of odd habits for me.
Worth giving it a shot.
https://gist.github.com/jj1bdx/a514530f4f67a744526644527a12f...