The views documentation says:
Views enable you to share subsets of the NuGet and npm package-versions in your feed with consumers.
But it doesn't mention Maven. It leads me to believe that views aren't supported for Maven. But I can see view related settings for Maven after clicking the Connect to feed button:

I also see the option to promote a Maven artifact to a higher view:

Is the documentation out-of-date?
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@kczelusniak ah, yeah, Views for Maven is a new feature. I'll update the docs right now, thanks for catching and reporting :)
Great!
You probably already know this, but this means that the following page is also out-of-date:
https://docs.microsoft.com/en-us/azure/devops/artifacts/feeds/views?view=azure-devops#managing-views
Hitting them both :)