"BGJ 20 Years Later"
Rotate: left drag. Move: right drag. Zoom: wheel (hold Alt to zoom fast). Re-anchor: double-click.

"BGJ 20 Years Later"
Look around: left drag. Move: wheel.

"BGJ 20 Years Later"
Rotate: drag. Move: two-finger drag. Zoom: pinch.

"BGJ 20 Years Later"
Look around: drag.