Earlier quoted context omitted.
Number one in performance / watt? maybe? sales? Well no. According to the web[1] total chip sales in 2022 excluding arm amount to 374 million units. Server chips being 36.1 million units. Apple's biggest quarter in 2022 was 7 million macs in Q4[2]. [1]: https://www.networkworld.com/article/3688288/amd-gains-share... [2]: https://www.statista.com/statistics/263444/sales-of-apple-ma...
Why are you excluding iOS devices?
I doubt the total chip number for the industry though - Intel alone ships ~100M. But it's clear Apple is very likely the largest manufacturer of CPUs.
* Correction: MediaTek shipped 350M units in 2020 and Qualcomm shipped 319M (due to the Trump embargo on China). So Apple is up there competing with manufacturers that sell their chips to anyone who will buy, but it may not necessarily be the largest.