Page switching. Shift+2 through Shift+8 jump straight to the Media, Cut, Edit, Fusion, Color, Fairlight, and Deliver pages from anywhere.
JKL playback and trimming. J, K, and L play in reverse, stop, and play forward, the backbone of the Cut and Edit pages' fast trim system, and they also drive playback on the Color and Fairlight pages.
Node-based work. Fusion and Color both build effects and grades as node trees: adding, bypassing, grouping, and connecting nodes uses the same core shortcuts (Option+S to add a node, Cmd+P to bypass one) on both pages.
The Color page's memory system. Option+1 through 8 saves a grade to Memory A-H; Cmd+1 through 8 loads it back onto another clip, the fastest way to copy a look across a timeline.
Fairlight mixing. A dedicated mixer, bus routing, and automation system with its own selection modes (Pointer, Range, Focus) for editing audio sample-accurately.