Go over there!
Probably if that's enabled. All I've seen them say is that you can turn off augments in unranked. Did they also say you could turn off custom variations in unranked? Remember, custom moves aren't tied to gear like they were in I2.People will just force competitive mode for casual matches like I did every time in Injustice.
And if everyone turns off custom variations, really what a waste of effort on NRS's part. This gets back to my original concern that NRS should've gone all-in on a polished system for custom variations or fixed variations rather than settle on a halfway built system for each. MKX's presets at least had thematic and strategic cohesion; MK11's so far haven't hit that bar.