Microsoft recently released June's firmware update for their Surface Go 2, featuring new Wi-Fi and Bluetooth drivers. The update also unpacks a couple of fixes for security vulnerabilities as highlighted below. note that you should be seeing these in Windows Update, as usual.
Surface Go 2 is the latest Microsoft Surface device to get firmware updates. The Surface Pro X, and Surface Laptop Go 2, also got updates this month. As for the original Surface Go, the May 2022 firmware update is causing some issues, with people reporting that it could brick their devices.
You can read more about the Surface Go 2's firmware update here, and it is currently available for users running Windows 11, or the Windows 10 May 2020 Update, Version 20H1, or greater.