spent a few minutes to make @radxa CM5 with RK3588S2 processor work in MNT Pocket Reform with RCM4 adapter. got our Debian based System Image to boot and to Gnome desktop on HDMI. internal display still needs a gpio fixup to enable, but it's a very promising option
everything (incl ethernet, nvme, usb2, internal display, hdmi, microsd, emmc, sysctl) works, except sound, because on radxa cm5 there's no I2S on the pins that i allocated back then for rpi cm4+bpi cm4. (i designed that adapter 3 years ago it seems). but that's an easy fix for a next rev.
@magnetic_tape @radxa it has a few I/O features cut, but same performance