The synthesiser in musescore 3 has a cold ?
Open Musescore 3
-write one or more voices including low pitched notes
-set the mixer parameters and listen
I've noticed with several versions of musescore 3 (3.0 3.2 3.3) that the synthesizer has a problem since there is low pitched notes with deep tone : I heard something like cuts ( like "flap" sounds) at the end of the notes and even in the middle.
I haven't such any the problem with musescore 2 (that's why I've set "workaround" on "yes") so I suppose it's not a hardware problem
I've tried all the possible combinations in the i/o preferences