Cross staff incorrect spacing.
MuseScore makes incorrect spacing in cross-staff:
The correct way is in the optical spacing:
The same problem is also found in cross-beam:
And the same incorrect spacing (ignoring the optical allotment) is found in all opposite directional stems, beamed or not beamed.
For your reference: Herbert Chlapik "Die Praxis des Notengraphikers"; © 1987 by Ludwig Doblinger (Bernhard Herzmansky) KG, Wien – München.