Sitting here at a drywall partition for the children's room. The setup is: 100 profile, double-planked on both sides with 12.5, and insulated with mineral wool. Although not everything went perfectly here (e.g., the sockets on both sides of the wall are exactly opposite each other), I do not perceive any acoustic difference compared to the 115 mm sand-lime interior walls.
Almost all suppliers of drywall solutions (Siniat, Fermacell, Rigips, Knauff, LaFarge, etc.) offer brochures on processing, which include, among other things, the sound insulation values of the constructions. And especially, details such as wall connections, decouplings, etc., are described there. Take a look at them sometime.