FM3a
This lens [Nikon 200-500mm VR $1,397, FX NIKKOR f/5.6 E ED VR (2015-)] is perfect on my FM3a (2001).
Of course it only shoots at f/5.6 and there is no VR or AF, but manual focus is wonderful care of the FM3a's special split-image focus aid that doesn't black out.
The microprism also works well, as does the ground glass and metering and exposure.
F5 and F6
On my F6 (2004) and F5 (1996), AF, VR, 3D Matrix Metering and auto exposure modes all work perfectly, except that the only auto or manual aperture setting available is f/5.6. Otherwise the finder displays and everything works perfectly.
AF, metering, exposure and VR are perfect.