I configured all my programmable keyboards to map Capslock to Fn and use Fn+WASD for cursors keys and Fn+Q for Home and Fn+E for End, so I think that dedicated keys are unnecessary.

I cannot imagine using anything else anymore because it is so insanely convenient to press and hold down Capslock with my pinky finger and browse around text extremely fast.

All my keyboards also map Fn+1 to copy and Fn+2 to insert text which saves additional effort to lift my finger from Fn/Capslock.