ELI5: Does microchimerism/telegony exist in humans? Has it been explicitly proven? (Saw fakenews abouty telegony being thrown around here, get some education).

And if so, to what extent?

Every now and then I've seen this topic brought up in various places and unsurprisingly it becomes very emotionally and politically charged. I understand if proven it could have massive implications regarding human relationships but I haven't yet seen anyone discuss this purely in an objective manner, it's always radical feminists calling it bullshit with no real argument or misogynists taking it as gospel with very little proof. I just want to know the facts.

Here's an image I saw purporting to "expose the truth" of this. It shows the kind of crazy emotions surrounding this topic.

Tried posting this on /r/askscience but my post got deleted without explanation and the mods ignored me. So let's try here.