I am thoroughly enjoying having Boost again, but I’m also definitely falling into a habit of scrolling for too long. It would be nice if Boost could help remind me to be done with Lemmy for the time being. One way would just be a limit in the number of posts that would load when scrolling down in the home view, probably configured via a setting.
Check your phone settings for digital well-being. You might be able to set a time limit on daily app usage.