Ethercat, Canopen over Ethercat Lichuan Cl57E

Hi,
i like to build a new control cabinett for my cnc machine. based on ethercat.
I am currently in the planing stage. I think the Lichuan CL57E are a great fit since from what I can read they can already do prettymuch everything I need. upto 4 closed loop stepper and tons of DIO.
de.aliexpress.com/item/1005009644510600.html
My problem is that it says it is canopen over ethercat. Does that mean other ethercat devices also need to be canopen? Or can I just connect my Beckhoff EK1100 and my servodrive to the same ethercat line?
Are there already drivers for lichuan ethercat devices?
Thanks for your help

Interesting concept, one driver supports 4 motors.

No problem with Canopen over ethercat. It is actually required for the device to use
Canopen over ethercat, CoE with linuxcnc. So all devices use it even the Beckhoffs.
No problem with coexistance.

There is no specific driver for the 57E but since it almost certainly is a cia402 drive there is a general driver to use.
The only a bit unique thing is to figure out the PDOs for motor 2, 3 and 4.
Can be done from the manual or from the drive itself.