They changed things to hide 'less common' actions when you right click. To disable that you need to hand edit a registry key.
I'm suspicious that they're trying to move to 'one drive' for the whole file system and so need to cache everything for reasons. Performance and also the files on your drive might actually be only in the cloud. IE your hard drive is for local caching not for storing data long term. Means perhaps if you save a file to disk. And then later pull the drive and put it on another machine those files won't actually be there.
If true this bodes very poorly.
You know this is what they are up to.