It was a bad take. Intel has not been using TSMC long.
That said, it’s pretty broadly agreed that Intel needs to toss its manufacturing arm into a subsidiary, and then possibly make that subsidiary completely independent. That’s what AMD did with Global Foundries, and it worked very well for them. This process seems to have already started at Intel.
It’ll be a step up from the 7800x3d, but how much is a question. The 9000 series in general has been a disappointment in terms of the gains that were expected, but it does show some kind of gain. There’s reason to think those issues are fixable. Linux performance does show a decent uplift, for one, which has not been the case with Intel’s Arrow Lake chips.