What would happen if release an older version on App store than Test Flight version?

Recently, We have our app (build version1.0.0) on Apple store and also have a Test Flight (build version 3.0.0).

If we launch app (build version 2.0.0) on the Apple store, What would happen to our Test Flight (build version3.0.0)?

For example, Would it replace our Test Flight version or not?

Please advice.