It's not misinformation to state how things end up functioning in practice. https://en.wikipedia.org/wiki/Duverger%27s_law?wprov=sfla1 It's a well known thing for anyone who's studied the tiniest bit of political science (or you know, was around in 2000 for that US election).
The way the votes get counted only matters insofar as their tangible real world outcome. The fact that your individual vote went to a specific third party or even abstaining ends up being irrelevant. The outcomes are the same and the party you prefer least is more likely to win. Again, I'm not advocating that this is a good system, but it is our current reality and stating that to be misinformation is ignorant at best or straight up manipulative propaganda at worst.
Goodbye!