Has Ryzen been considered for future devices? It seems to me that the Intel ME is a major hurdle, and AMD’s PSP has reportedly been toggle-able in relatively recent bios releases (whether that has remained an option is unknown to me)
see:
Does that not speak to some sort of ease of development for Librem?
No, it’s not toggle-able. The post you linked to is from a misinformed user, this looks like it only disables the BIOS communicating with the PSP, but the PSP is still active. It mentions which BIOS features get disabled as a result, but it doesn’t say anything about the PSP processor itself being disabled. See this comment for example : https://www.reddit.com/r/linuxmasterrace/comments/7i6kl7/amd_listened_to_us_and_added_a_psp_disable_option/dqwqdyc/