Yes, it's common for Apple to report a bug against the app; in fact in many cases the bug has already been fixed in the latest version! But that doesn't help us

Yes, it's common for Apple to report a bug against the app; in fact in many cases the bug has already been fixed in the latest version! But that doesn't help users who are using old versions. Most app developers aren't going to spend resources putting out a dot release for years-old versions of their app. But users use those apps every day. Check-fixed behavior is not a "feature," it's some sub-optimal behavior applied to work around serious bugs. An example is lying to the app about the OS version, to prevent the app from breaking. No developer wants to opt-into such behavior. Note that check-fixes are tied to an SDK version, so when the developer switches to the newest SDK, they'll see the normal behavior.