If you're going to single IPv6 out, then you should also show IPv4.
If you're going down that route.., why not breakdown the three types of authentication also:
DNS-01-
HTTP-01[IPv6 / IPv4] -
TLS-ALPN-01[IPv6 / IPv4]
Did we miss anyone?
[it doesn't hurt to ask... maybe Santa will bring us more visibility into these things]