2016~2021 2016+ Transfer Case Fluid Replace?

2016 Mazda CX-9 Grand Touring AWD
Anyone here with a 2016+ AWD CX-9 that replaced their transfer case fluid? I'm nearing 40,000 miles and have been reading the previous gen models requiring transfer case fluid replaced or even the transfer case itself.
2016 CX-9 Signature/2015 CX-5 Touring/2013 MX-5 GT PRHT
This isn't called out in the maintenance schedule. I haven't had to do this yet, but I am at 35k. I did speak with a service advisor recently and was recommended to do a drain and fill at 60k along with the transmission fluid.
2018 CX-9 GT
Can we get a sticky on this when someone does it? Also would like to see the same for a tranny drain/fill and rear differential drain/fill. Thanks.