Not quite the same workflow, but in Percona Toolkit there's a tool called pt-upgrade which can provide similar information. See the use-case doc section on "reference results to host" comparisons: https://docs.percona.com/percona-toolkit/pt-upgrade.html

I'm obviously biased. Adding MySQL support is not that difficult but maintenance is (and ultimately PostgreSQL is better way forward (half joking :))

With current feature set it's something I have already considered but still undecided.