Hmmm. Now I'm very confused.
From what I understand, TMVN gets its information from USCIS.
And here it is only as accurate as the community members update their timeline, which is rather imprecise.
And what was important to me was whether I could go through the immigration process at the airport already in Canada before I enter the US. Since my fiancé lives relatively close to the border, it would be a good idea.