[myaccount9786]

Oh haha N=2 here, so you are probably right. Survivorship bias on my part.

I posted these stats in another thread:

According to https://lichess.org/analysis#1, for blitz and rapid games played on lichess with 1.e4, 1...e5 is 33%, 1...c5 is 25% and 1...e6 is 10%. And 35% is some other nonsense.

[myaccount9786]

Does it use the frequencies from the lichess database? That would be pretty cool if it did!