Rumour has it that Google has already received working versions of its custom Exynos SoC, developed in partnership with Samsung. Codenamed Whitechapel, the 8-core ARM chip is said to be based on a 5 nm process. While there has been talk of the 5 nm chip making its way into the Pixel 5, Google may have even bigger plans for Whitechapel.
https://www.notebookcheck.net/Whitechapel-Google-s-custom-5-nm-Exynos-SoC-may-be-coming-to-Pixels-and-Chromebooks-but-not-the-Pixel-5.461592.0.html