It's really not as scary as you think it is. Whenever I want a subscription I want inside an app, I actually take the effort to go to their website and buy it

It's really not as scary as you think it is. Whenever I want a subscription I want inside an app, I actually take the effort to go to their website and buy it from them directly, because it's cheaper (not that they're allowed to tell me this in their app though). When I want to stop paying for the subscription, I cancel it and I'm done. At least in the EU, this is always an easy thing to do.