I think that if you have visitors, or family, that are used to a quiet house, for whatever reason, then yes, they would probably find the environment too busy/loud to tolerate for long.
Boisterous kids, full of high energy and enthusiasm, full of chatter and likely speaking loudly because of competition with sibs, or else spending much time on a sports field where you are in with others shouting, yelling, laughing, all loudly, would be a bit much inside for some.
NOT a criticism at all!
I think it's lovely that your kids are self-sufficient in amusing themselves, love to act and sing, and being into sports is a healthy outlet and fun too, as opposed to sitting for hours on their own, out of sight, not interacting with family, and doing who-knows-what.
I think you should be very happy with your kids, so what if others can't stick the noise in your house for long?
Your kids will likely be very close as they get older, and be socially oriented.
The memories they are creating now and the fun atmosphere is healthy and will stand them in good stead going forward.
You enjoy it, OP. I think It's a wonderful thing to see your kids having fun and using their imagination, feeling free to express themselves however they enjoy doing that.