72530 Slight cleanup in MultiChildRenderObjectElement (cla: yes, framework)

72531 Update Scrollbar behavior for mobile devices (a: fidelity, cla: yes, f: material design, f: scrolling, framework, waiting for tree to go green)

72532 Remove deprecated showDialog.child (cla: yes, f: material design, framework, severe: API break, waiting for tree to go green)

72541 Proposal : #72346 - expose property to pass AnimationController to showBottomSheet/showModalBottomSheet (a: animation, cla: yes, f: material design, framework)

72548 Update various API docs (cla: yes, framework)

72553 Autocomplete Split UI (cla: yes, framework)