https://wccftech.com/surface-pro-x-with-sq1-and-sq2-chips-receive-new-updates/

Microsoft has released a number of firmware updates for its Surface Pro X devices. This latest set of updates is available for the original Surface Pro X with the Microsoft SQ1 chipset, and the more recent variant with SQ2.

The following updates are available for Surface Pro X with SQ2 processor running Windows 10 May 2020 Update, version 2004, or greater.