Answering your cycling questions

The EaZyKF bracket will work in conjunction with other locks but you need the proper shackle clamp fitted.

Evans sells various shackle clamps that will fit the EaZyKF Bracket:
104636-NA-NA, Granit 51
104637-NA-NA, Granit X Plus 54
104638-NA-NA, Granit Plus 54
104639-NA-NA, Varedo 47

I would check with Evans if your lock isn't listed, if not, try searching for it.

UPDATE TO MY PREVIOUS ANSWER.

The EaZyKF bracket will work in conjunction with other ABUS locks but you need the proper shackle clamp fitted.

Evans sells various shackle clamps that will fit the EaZyKF Bracket:
104636-NA-NA, Granit 51
104637-NA-NA, Granit X Plus 54
104638-NA-NA, Granit Plus 54
104639-NA-NA, Varedo 47

Ask Evans about your lock if it's not listed.

No, because the clamp keeps it in place and just the section of the lock wouldn't much the bracket

No, it only fits an ABUS lock with a 13mm square shackle clamp attached.

It's the reason I sold my Kryptonite New York M18-WL, Kryptonite never made a bracket for that lock because of the humongous weight, 5.9lbs.

I sold it and bought an ABUS Granit X-Plus 54/160 HB 230 U-lock which came with the ABUS EaZy-KF bracket (Evans: 120941-NA-BLK) to replace it. A great lock with the best U-lock bracket available - what a relief, no more problems!