Alder Lake is probably the last CPU lineup to be produced exclusively by Intel's fabs. After that, Intel plans to gradually outsource CPU lineups to TSMC, with the low-end Core i3 models scheduled to be produced by the Taiwanese fabs in the second half of 2021. A year later, TSMC is also expected to begin mass-production for Intel's mid-range and high-end processors on the 3 nm nodes.
https://www.notebookcheck.net/TSMC-expected-to-produce-Intel-Core-i3-chips-on-5-nm-nodes-in-2H21-3-nm-high-end-chips-coming-in-2H22.515008.0.html
Apple with their M1 seems want to simplify the tech into more mobile, while intel stick on their desktop legacy. But since apple m1 is as expensive as intel. This war seems pointless. Everything still getting more and more expensive and complicated.