2016~2021 2016+ Transfer Case Fluid Replace?

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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.
 
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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.
 
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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.
 
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