I wouldn’t say I use vintage nikkors on my FM2, even though the 24 2.8 AF-D and 105 micro AF-D aren’t exactly recent (my main lens is a voigtländer ultron 40 sl-iis), but am often tempted to get one or two Ai-s lenses because they would simply be a good match for the FM2.
Options I’m looking into are (because the Nikon complements a Leica M and is hence more used for longer lenses):
85 2.0 or 1.4
200 f/4.0
But also the 35 1.4 and 50 1.2 remain tempting because I remain most at easy with moderate focal lengths