Ranked Choice Voting (aka Instant Runoff Voting) is the single worst of the very many seriously proposed ranked ballots method; it retains most of what is bad about FPTP. It is somewhat easier to tally than the best (in terms of the logic of who wins) ranked ballots methods (methods satisfying the Condorcet criterion), but not particularly good even on that among all ranked ballots methods, e.g., it can be improved in that dimension by just adding all preferences of the next rank until a candidate crosses the maiority threshold without elimination, which also reduces the degree to which the system is prone to paradoxical effects (promoting a candidate causing them to lose by changing the order others are eliminated.)

River method is better, but any ranked method is better than approval for sure, and literally any multiple-choice method is better than FPTP.

>adding all preferences of the next rank until a candidate crosses the maiority threshold without elimination

I don't follow, what method is that?