What's the best practice to migrate standalone instance data to existed replicaset

@Mayank_Anand2, same as in my other reply, could you please update your post with the mention that you use some kind of Generative AI to generate your response? Just like you did in Performance Impact of 955 indexes in one database - #2 by Mayank_Anand2.

I think it is important for people to know. To me it is obvious it comes from AI since your 4 replies appears at the same time and uses the same nice formatting.