I'll also plug https://www.electionscience.org, an awesome and underfunded nonprofit that helped get Fargo's approval voting initiative passed. (I've donated to them but have no other affiliation.)
I've been equating RCV with Score Voting, not IRV. I'll review the literature and see where I'm wrong.
I do not support IRV. It's an election integrity nightmare for little or no gain over Approval Voting.
My introduction to election stuff was thru IRV advocacy. Then I learned about tabulation complexity.
Over time, my position changed to PR for assemblies and Approval Voting for executives. I now wonder if Approval Voting could (should) also be used for PR.
That's all to say my strong-opinions-loosely-held about voting systems is motivated by us forging a better democracy, not any particular implementation. I'll realpolitik support any path forward.