Big Sur Scaled display more space is actually less than before?

Hei, Just tried our apps on updated 13" Retina MacBook Pro and everything is much bigger. Applications show a lot less content than before.

Even opening previous screenshots with Preview which took only half the screen before are now so large it is hard to look those :D.. And our web app in Safari won't show all marketing content if Safari is in full-screen mode and MacBook display is Scaled to More Space..

Does anyone know.. is it a bug or intentional outcome?
Big Sur Scaled display more space is actually less than before?
 
 
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