Raspberry CM5 compatibilty

Hi I trying to make a cnc control panel with touch screen and tactile switch and communicate to control box via EtherCat.and to my
unknowledgeable I thought a modern mini pc multi core ddr5 would be better to run high speed real time instruction and purchase MSI
cubi NUC 1m turn out a 8 core cpu is no good with real time kernal and worse an onboard vga is MSI SOC proprietary driver which
bookworm not support and general intel driver is not support either only for the late 6.8 kernal support it but it bring tons of latency.So I decide to shift to raspberry pi 5 and then see a uconsole for raspberry cm5 and it NVME support.
So my question are follow
Does Linuxcnc support raspberry CM5
Does Linuxcnc Support CM5 EMMC memory
Does Linuxcnc support NVME SSD
Does Linuxcnc support CM5 carrier board
Does Linuxcnc support touch screen with SPI connection
Thank in advance
Oat.   

Note that those are all Linux questions, not LinuxCNC questions
so perhaps better asked in a general Linux forum.

There is a Linuxcnc image for the RPi. There is nothing special about the image, it is just Debian Bookworm with the Linuxcnc packages installed and a realtime kernel built from the Raspberry Pi official GitHub sources with the RT-Preempt enabled, no non RPi patches are added.
I can confirm booting from SD card, USB and Nvme all work.
For touchscreen I would be more inclined to use one with a USB interface that enumerates as HID, it is far easier to setup and basically "just works". This has been confirmed with a generic touchscreen bought from AliExpress, 10.1" in this case.
For a small form factor, x86/64 is the best bang for buck, I would suggest looking into the Odroid H series, I have been using an Odroid H3 since its release and it has not let me down.
Even a 3rd gen I5 is a better solution than the RPi 4 or 5. The only advantage is the small form factor and being able to connect to a Mesa SPI board. Compared to an ex corporate PC it is quite an expensive option.
The above opinion comes from use of the RPi-400, RPi5 with an Nvme drive and use of an Lenovo ThinkCentre with an i5 I found by the side of the road that someone was throwing away.