The only ebike specific drivetrain I'm aware of is SRAM's, it's cassette is 1x specific and 8 speed with thicker cogs and chain to accommodate the higher torque of a motor + rider. It would fit on any wheel with a XD driver.
No. Quite the opposite.
SRAM's XG-899 E-BLOCK cassette is non-XD driver compatible.
Also should be mentioned that the brief description on the SRAM website says that it is machined from tool steel, and is case hardened. They are not specific about the steel alloy used, but tool steel is generally alloyed for toughness and longer wear. Case hardening is a process that should provide good wear characteristics by hardening the outer surface and a shallow depth of substrate, leaving material at deeper depths softer, less brittle, more tough.
I suspect that this cassette and derailleur may be very well suited to e-bike application.