They broke quicklook with Mojave too. You used to be able to press spacebar to get a preview of a file, then press shift and move to the previous file in a finder list, highlighting both of them but showing you a preview of the most recent item. That way, you could work through a list of files deciding which ones to delete or move to another folder whilst previewing them.
In Mojave they broke this and it only ever displayed the first item, making quicklook now incredibly useless for me.
This rung _so_ untrue that I just went and tested it on three different macs running various combinations of Big Sur beta and shipped, since I use Alfred and disable Spotlight's UI.
And predictably, it's simply not true. If you open the spotlight window and type "5+5", 10 appears immediately as the first result line. If you type "85lbs in kg" the first line immediately reveals it to be 38.56kg. In fact, I didn't even need to type the "in kg", since it did that by default.
So what precise regression are you talking about here?
It doesn’t show up on the right pane in a split (as it used to pre-Big Sur)
This difference is more noticeable when I’m looking up a word in the dictionary, looking up a contact etc, or searching for an email/file. Why do I have to press another key?!
Pet peeve about using spotlight as a currency converter btw:
It can do popular currencies ("100 EUR in USD", CAD, JPY, GBP) and some minor ones (HKD, THB, SEK, NOK, HRK), but try lesser known ones (GEL, COP, PHP, KES), and it doesn't work.
Wonder where that list resides, and whether one could extend it.
Why would you actively degrade usability?