Comment by troyvit

It's probably too annoying for most, but I had a similar problem with KoReader and library books because those too depend on DRM. I ended up keeping KoReader as an app, then just not loading the app when I was reading a library book. It wasn't too bad.

KoReader also gave me a lot of freedom to manage the bad battery life of my Kobo Sage before it died of other causes. Definitely worth the extra cognitive load of dealing with the two experiences.