Both liftoff and connect do it for me as long as there's not a big delay or *multiple z other apps.
I think this is an android thing rather than an app thing though. It's about how apps are being managed in the background. I know that on my old tablet, reddit apps would close fully when switching apps to share something or whatever, but they didn't on my newer devices. Games are hit-or-miss on all of them. That's what points to it being os based rather than the apps.