I've seen it a few times. You probably won't see it much on lemmy since lemmy is pretty left leaning for the most part and doesn't have as many of those types of centrists, but those people do exist on other sites that I've seen.

Exactly. It definitely isn't a, "centrist," position either, centrists are firmly behind Biden. It feels like something leftists who are considering voting third party might say, but again, it's not something I've actually seen anyone say. This feels like a meme in search of a problem.