Intel has been pretty much alone in making all of its chips in its own fabrication plants, but announced last year that it would start to use outside vendors to make some of its chips (although probably not the bleeding edge top of the line products), while expanding its presence in the fabrication market for other companies, including licensing older versions of x86 processor cores to be integrated into their products made in Intel fabs.
Intel’s manufacturing is presently 80% in Asia, but when they announced “Intel Building Two Semiconductor Fabrication Plants in Germany for € 17 Billion” (2022-03-18) they said new manufacturing investment will be mostly in the U.S. and Europe, with facilities planned for Italy, France, and Poland. See also the post here on 2022-04-12, “Intel Expanding Flagship Semiconductor Fab in Oregon”.