Okay, here is some info about MyTrueAncestry which is worth a read:
https://blog.genomelink.io/posts/mytrueancestry-review
It says "there seem to be some serious logical fallacies" but that it "does provide a lot of fun content to read". So, don't take MyTrueAncestry very seriously!
Edit - just noticed that link is to Genomelink's blog. But at least the other reviews on that blog do seem to be based in reality. Just Googling for reviews of any of these sites can come up with fake reviews. It does look as though the info in the article about MyTrueAncestry is correct.