It used to be that you could see the data of the block that you were looking at in the F3 screen. Unfortunately that is no longer the case. This makes it harder to use /setblock to receive the precise block you are looking for. My video gives a better description of the practical uses for this. Something I neglected to show in my video was an attempt to use the variant data tag and it not having any effect. I'm not sure if this itself is a bug, but I know this issue can be resolved if the block data is added back in for the block you are looking at/ referencing.

(Under 3 minute) Bug report (Private) video: https://www.youtube.com/watch?v=pZWVfaXMrR4