About this video
I found another version of main menu screen, which might be leftover or something for older version of the game I guess.
Changing line 46 from MainMenuIn to MainMenuZagIn,
in your "steamapps\common\Hades\Content\Game\GUI\MainMenuScreen.sjson" enables it.
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I've changed the values for MainMenuLogo so that the title fade effect is more suitable for MainMenuZagIn transition.
FadeDelayMin = 1.0
FadeDelayMax = 1.0
FadeSpeed = 200.0
As the default values are pretty much specifically made for MainMenuIn transition I believe.