This is exactly what I expected to read when I started reading. So many apps have done this to me that I'm now hesitant to install, and become dependent on, any new apps.
I'm genuinely sorry, but I'm not paying a subscription for an app that doesn't do a lot of back-end work (that's valuable to me). No, syncing doesn't count; I have iCloud and Nextcloud and the share sheet functionality for that. No, social features don't count either. This goes quadruple for apps that have a feature enabled and then sneak it behind a paywall many updates later.
And when I write that I'm genuinely sorry, I really am! I know that developers need to earn a living but I'm not willing to sustain it on the back of 10 or 20 or 30 "low annual price of just $9 or $15 or $25 or $49 per year!" subscriptions. If that means fewer apps or fewer people making their living at being app developers, that is bad and I hope that applies pressure on Apple and Google to add features to their app stores that make a better balance.