According to this article, "our" Neveah was born May 18, 2017:
https://www.tps.ca/media-centre/stories/her-name-is-neveah . This Neveah's death also happened AFTER our Neveah was discovered, making it more or less impossible that they're the same person. Her funeral/memorial service took place in May 2022, so long before our girl was identified. The truth of the matter is that Neveah is currently a popular name for little girls and Tucker is a common last name, and two girls with that name dying/being discovered in different countries under different circumstances is easily explainable.
The Texas-based company that helped with her identification, Othram, is one of the better known genetic geneaology companies that works on UID cases. They take cases from all over the US and have apparently worked on Canadian cases (and maybe other international cases) before too. The fact Othram was working on her case doesn't mean she has/was believed to have ties from Texas.