clef change in one staff adds unnecessary spacing in other staves
Clefs added to one staff should not cause extra spacing in other staves. Observe the following music as it appears in MuseScore 3:
The clef changes in the left hand staff cause huge, ugly gaps between the right hand notes. This problem wasn't nearly as bad in MuseScore 2, though it's still not perfect:
Here is a screenshot from Finale, as an example of how it should look:
Here, you can see no spacing impact in the right hand as a result of the left hand clefs, except where necessary to maintain vertical beat alignment between the staves.
MuseScore files of these examples are attached.
OS: KDE neon User Edition 5.15, Arch.: x86_64, MuseScore version (64-bit): 18.104.22.16859, revision: c2d3822