The chart at the bottom demonstrating the range of "Bayesian regret" caught my eye when I first started looking into all of this 3 years ago. It roughly measures aggregate societal satisfaction with respect to the result of the election versus their own preferences. Strategic ballots in approval voting reduce to FPTP -- there's not really much room for a concerted effort to sway an election one way or another, since this strategy will be shared by large swaths of each candidate's voter base and so is roughly negligible. And people will feel that "their voice is heard" which I strongly encourage as political engagement is contingent on feeling like it's worth it.