I heavily use both and this is objectively untrue.

This is a good answer.

To add, for Linux kernels, the maintainer use a shim EFI package with the distro’s keys (e.g., Canonical’s keys for Ubuntu) which loads the maintainer-signed kernel. And Microsoft signs the shim to keep the chain intact.

I don’t deal with hardware much anymore, but I’d take Aruba over Cisco any day. But for everything else, yeah fuck HP.