Would you be concerned??

I have this friend. Let's call her K. She has a 6 year old daughter. Let's call her S. So the reason I am making this post is because I am concerned about the weight of S. K always says it's because she is going through a lot of growth spurts, but how much she weighs seems a bit concerning. So for reference she is 4' tall and she weighs 93lbs. I know it can be normal for kids to have their stomach poke out a bit because they are growing, but S also seems to have grown a little bit in her chest as well.

And I mean, I know it may not be any of my business, but I am concerned about whether or not it is normal for a 6 year old girl to weigh that much.

Also for reference, she will be turning 7 in about 3.5 months or so. And she is already in a size XL in girls and sometimes she can even wear women's clothes already.