Is it possible to apply a custom UIContentConfiguration to UICollectionViewCell?

I am not asking about the UIKit-provided implementations of UIContentConfiguration. I am specifically asking if it is possible to:
  • define a type that conforms to UIContentConfiguration

  • apply an instance of that type to a plain-old UICollectionViewCell using the contentConfiguration property?

I have tried doing this and it seems that UICollectionViewCell's contentConfiguration setter is a no-op.
This appears to be a partial answer: twitter.com/smileyborg/status/1275571597953208320?s=21
Custom content configurations & content views are fully supported, however in Seed 1 (released at WWDC) they aren't yet available in Swift. Stay tuned for updates in future seeds, and we'll be providing more guidance and sample code once available.
Custom content configurations & content views are fully supported in both Swift and Objective-C as of iOS 14 beta 2. The Implementing Modern Collection Views sample code has been updated to include an example that shows how to get started.
Is it possible to apply a custom UIContentConfiguration to UICollectionViewCell?
 
 
Q