As i am operating D4S, D500, D850 and Z6 (amongst others) I'd recommend taking a SLR when shooting sports or wildlife. And there is plenty of superb F-mount tools out there that can be operated on a Z as well without compatibiliy restrictions via FTZ adapter
we have the Z-mounted 70-200/2,8 S already and there will be more - be patient. Current situatoin has become completely unpredictable due to foreseeable and unforeseeable consequences of pandemic driven economic crisis and severe impacts on an already shrinking market.
Technically everything beyound 50-60 mm up to 200 mm is considered as Tele lens and everything from 300 and above supertele, so 85 /1,8 is tele but of course by no way a sufficient tool for sports and wildlife which requires supertele. Given the Z-roadmap a 100-400 S and 200-600 have been announced, both are in the supertele range - no prime of course but the same goes for the 80-400, 180-400, 200-400 and 200-500 F-mount lenses. And BTW there is no 200-600 lens in the F-mount lineup if its good it may be a winner. To me this strategy is right, prosumers are preferring telezooms and the number of those who aquire FL-type primes is limited.
Personally I might buy the 200-600 but I am not willing to add another 800mm f/5,6 in Z-mount.