Notice the Y rotate handle is not visible, so I have to move the camera up or down a little to see it! phew, on a day-to-day basis, so much little niggly issues! I don't want to be petty and complain about them but sometimes they just start to add up and the frustrations get the better of me. SideFX if you could solve this one, I'd appreciate it.

I can't find a handle preference to change this behavior, but if you switch to the rotate handle (R) instead of using the generic transform handle it won't hide the rotation axis perpendicular to the camera. I think this is just the transform handle prioritizing translation over rotation for whatever reason.

It'd be nice if the Cycle Handle Mode hotkey (Y) had a rotation handle in addition to translate/scale/generic.

It's probably worth an RFE even if you feel like they're petty issues... UX is important!