After the forced re-login, redirect the user to the page they initially launched - protect their wrist & attention span!
1. Whenever I go to SuperBetter site, I try to launch exactly the page I need — to save time, efforts, attention span, and my wrist.
I do it via either a) my Chrome home page - it has icons for SuperBetter pages that I use frequently (Power-Ups, Quests, Bad Guys) because I visit those pages frequently or b) Chrome's URL suggestions.
Given that you officially recommend prioritizing the web version of SuperBetter over the apps, I'm sure other users also attempt a similar quick-launch (maybe they even put the links to those pages on their browser's Bookmarks toolbar).
2. SuperBetter site forces me to re-login multiple times a day, it usually starts after the work day in American time zone starts.
Each time after the forced re-login I get redirected to the Activity page, no matter what page I initially launched.
It's annoying and distracting! Especially given than using SuperBetter requires lots of clicks in general.