64498 Reland: Increase threshold for usage of compute for utf8 decoding on large strings to 50 KB (cla: yes, framework, tool, waiting for tree to go green)

64504 Change iOS plugin simulator archs from allow list to deny list (cla: yes, team, tool)

64512 [flutter_tools] refactor artifact downloading to retry zip exceptions. (cla: yes, tool, waiting for tree to go green)

64513 Reland “Prevent viewport.showOnScreen from scrolling the viewport if the specified Rect is already visible.  (#56413)”, reverted in #64091 (cla: yes, f: material design, f: scrolling, framework, waiting for tree to go green)