Lens advice.

I have a z6ii and bought the z24-120 f4. I mostly take pictures when hiking with the family (mix of family shots and landscape shots). My kids are in orchestra and would like to take pictures of them (inside, dark, and I’m usually sitting farther away).

I was thinking that I’d want the 70-200 2.8, but it’s really big, heavy and expensive. Plus, I don’t know if 200 would be enough reach over my current 24-120.

Any advice would be appreciated. (Even if that advice is “dude, man up and walk up closer to get your picture”)