cm4/5 adapter board compatibility

[pci519864-max]

cm4/cm5 adapter board, besides the raspberry pi cm4 and cm5 what other modules or soms are compatible?

i also saw on twitter that the radxa cm5 (rk3588s) might work. can anyone confirm if that's true and how well it works?

[RalphSmeets]

Can't say anything about the radxa cm5, but I can confirm that the pini64 SOQuartz (RK3566) is working in my setup (k3s cluster).