I have no empirical data to back this up but the way I see it, the vast majority of people are probably already pluralists about truth. If you asked someone what logical or vacuous truths correspond to, I would bet they would more readily say that correspondence only applies to contingent or empirical truths rather than, say, becoming a truth-maker maximalists or adopting Tarski’s thoughts

If people are ready to allow for different domains to have different truth-conditions/truth-relations or domain-specific facts. Then I think people are actually a little more sympathetic to relativism than they might think

(This is of course not to say that plurality is an easy route to relativism but it is a good candidate motivation for it)