UEFI Secure Boot for Linux Arm64 – where do we stand?

Still exotic for now, but moves are afoot
Arm devices are everywhere today and many of them run Linux. The operating system also powers cloud computing and IT environments all over the world. However, x86 is still the dominant architecture of global computer hardware, where the Unified Extensible Firmware Interface (UEFI) with Secure Boot incorporated is a standard. But what does UEFI look like from an Arm perspective?…