I genuinely searched every instance of you mentioning Triangle City or TGS on this thread and the site in general, and also every time you mentioned TGS (though I only searched for TGS in this thread) as well.
This and a slightly shortened version of the same statement you posted in the Fallout show thread are the only times I saw you mention the him having this secret build.
If you actually have that link handy it would be interesting, but all I can find from you talking about it is literal discord hear-say.
This isn't discord hearsay, I watched the damn video when it released. It's not around, it's been privated.
More archive links
Check the dates, late April 2021
This means the video was released shortly afterwards, in early May probably, but by July(the closest Wayback Machine link I can find) it's no longer there.
I watched the video once and then when I was told it's no longer around, I couldn't find it again. I had the link to the video itself once upon a time, must have posted it on 4chan or 8chan but I don't know if I have it on me right now. Like I said, won't do you or me any good since you can't watch the video. Even if I did lie about it, the tweets prove he has the September builds, and had them for 4 years now.
I might look around for the link in the archives, if you really want your curiosity sated to prove it existed, but it would be more interesting to simply talk about what was in the video itself. Let's just say the game was very buggy and unstable, not sure how much of that was the emulator itself but the game was in no way playable at that point. Lots of glitches, visual bugs, LOD issues, creatures passing thru the ground, you name it. I can only imagine how the PS3 port fared, I can believe the devs when they said it was a miracle the game shipped on the PS3 at all if this is how the superior 360 build ran.
Edit: He admits he released the video here
Thing is, he's trying to pass off the TGS build as if it's "almost complete", like you're not missing out on anything by him not releasing it or footage of it. That's bullshit, the video he released(and privated) on it was very similar to the recent leaks, ie a lot of different stuff, except it was really buggy. Very unstable too, he even made a note of it.
Point I am making is that he is a liar and a grifter, he released something he shouldn't have and then when his discord buddies told him to pull up, he tried to make the TGS build into a nothingburger.