Noticeable?

I think it’s much harder to see our own results vs someone else’s. We are our own worst critics plus we see ourselves every day so it’s harder to notice the gradual changes.

It also depends on things like your height. If she’s shorter the same amount of weight loss will be more noticeable on a shorter person.

And yes, the fact that she goes to the gym daily probably does make a difference because it’s likely she is retaining more muscle if she is strength training and you aren’t.

But weight loss isn’t about comparing yourself to others. If you are unhappy with your body then maybe consider adding more exercise to your routine. But if you are happy with yourself then don’t worry about what others are doing.