I certainly prefer it, although I sometimes go with legacy BIOS on PC since I'm lazy and don't feel like dealing with graphics drivers shenanigans. A locked bootlocker on my phone though (as apposed to my laptop that is only ever at home or a workplace) feels more non negotiable to me. My 2c anyways.
Discussion
Have you tried coreboot on certain machines? I know a modern MSI motherboard supports that for Intel ME disabling.
I have coreboot on a Chromebook running Debian, but that's more so just because I needed a real bootloader than me seeking out coreboot. I've never had coreboot on a device that had a functional bootloader by default.