Bachi Maybe that's the last graphene OS update that messed up something ?
Whatever the cause is, it's probably not this. If it were because of a GrapheneOS update, we'd have many people reporting this problem, which isn't the case right now. I just installed a few apps earlier today myself. All good over here.
Most likely cause is something about your setup, but I have no idea what it could be since you say it's affecting two different apps.
If you create a new profile, does the same thing happen there?