Late to the party but wondering if you ever got an ABUS lock for your Como.
I installed a 4750 XL on my wife's 2022 Como. I also bought an ABUS 5850/5650/4960 Cable 12/100, Black, 100 cm. I bought both on Amazon. The package arrived and one of the keys was bent. ABUS mailed me a set of replacement keys directly.
When installing it, the frame bosses severely cracked the plastic case on the back the Abus lock. I repaired it with epoxy and reinstalled it but used small fender washers to distribute the pressure so it would not crack again.
I was able to mount the lock using the highest screw slots.