With good reason as it's unworkable. iOS and iPadOS are not stable systems like OSX where the fundamentals of the overall experience is clear and largely compl

With good reason as it's unworkable. iOS and iPadOS are not stable systems like OSX where the fundamentals of the overall experience is clear and largely complete. There is still a lot of innovation and new concepts being introduced each year. To have a large percentage of users with older apps that won't properly support these changes would hurt the platform. As was mentioned feature flags are a much better option.