Back in November, Microsoft finally explained what a Windows Feature Experience Pack is, as it had been spotted inside Windows for some time. It's a way to deliver new features without delivering a new build, and today, Windows Insiders on the Beta channel are getting Windows Feature Experience Pack 120.2212.2020.0.
This new Windows Feature Experience Pack (presumably, this incredibly long name isn't the final name of the product) doesn't have much in the way of new features, but it's meant to improve the reliability of the screen snipping experience. Part of how that's happening is removing the ability to paste a screen snip into a folder in File Explorer.
The reason that's being removed is because there was an issue that was filed by Windows Insiders, and the team is planning to add the feature back at some point.
In order to get today's Windows Feature Experience Pack, you'll need to be on the Beta channel and on build 19042.662 or higher. It will arrive via Windows Update, just like all other updates. Microsoft also noted that it plans to deliver more significant Windows Feature Experience Packs, and it plans to release them more often. At some point, it's going to be part of the normal servicing process.