Would Britain have used the same plan against Yamato that it used against Bismarck?
Short answerNo; Yamato was likely to be part of a fleet, so Britain would need carrier strikes, numerical concentration, and a radar-assisted night action.
NotesThe Bismarck analogy breaks down because the German battleship sailed with only Prinz Eugen, whereas Yamato might be accompanied by Musashi and several additional battleships. Britain could not assume the easy numerical concentration available against a lone German sortie. A plausible plan would begin with carrier strikes to damage and slow as much of the Japanese force as possible. British capital ships would then seek a radar-assisted night engagement, with the outcome depending on how many modern battleships and fast units could be concentrated that day.