Your Question: Do You Want to Uninstall All Updates to This Android System App?

Since you are reverting back to old version of the app, it will have the same bugs whick was removed when you updated the app.. So basically you should not uninstall updates. But if you want you can uninstall updates, it would cause (/much) issues.

What does uninstall updates do on Android?

Uninstalling updates take the app back to factory settings without having to do a complete factory reset. Factory resets are always the last resort. Clearing the cache, clearing data and rolling back updated on pre-installed apps can help avoid that.

Is Android system update necessary?

There are reasons why you get warnings about updates: because they are often necessary for device security or efficiency. Apple pushes out only major updates and does so as a whole package. But there are instances when Android pieces can be updated. Many times these updates will occur without your assistance.