Hey Bob and/or Craig (or whomever is working on JRemote), I just got an iPad yesterday (my first time experiencing iOS/iPadOS but thankfully I learn VERY quick) and of course one of the first things I did was purchase JRemote and load it on. I also bought a M4 Mac Mini and it'll be here mid-next week, so I guess I'm back on the Mac train too (an actual Mac for the first time, no Hackintoshes!) and I should be able to help test things and troubleshoot issues for Mac users again.
Anyways, mostly the experience has been pretty great, though I did notice several potential issues when using it on an iPad.
1) I can confirm
this issue exists where the bottom overlaps the player controls, making it hard to use buttons sometimes. But this not just happens in landscape mode, but portrait mode as well...

And landscape mode, of course...

2) The bottom controls covers the last letter (Z) of the alphabet list on the right side (and yes, there are Z artists and you can scroll down to them). You can also see it clips off the bottom of the search button as well.

Maybe this can be changed where the layout of the letters is brought up a bit so the controls can't cover Z (and the bottom portion of the search button)?
Both of these issues should easily be reproducible on an iPad, so hopefully it's something can be looked into and hopefully addressed. For reference I'm using an iPad 10th generation running iPadOS 18.3.1.