I’ve noticed BTC on average has 0.61KB per transaction
Beam’s average is 0.22KB
Monero’s average is 14.7KB
Zcash’s average is 5.27KB
This data I’ve retrieved comes from https://medium.com/beam-mw/whats-the-difference-between-monero-zcash-and-beam-953eafd89354. I believe the calculations weren’t based off an unfair data set. The article isn’t biased though I welcome any information others want to share.