CAM-1: Insta360 Link 2 Pro on Linux: tracking, gestures, what needs the vendor app

Size: A · Needs first: — · Done when: the camera tracks on Linux, and what needs Link Controller is written down

Next step

Video on, then hold an open palm toward the camera: does tracking start without any app?

Tick when it's in the bin; write "ordered YYYY-MM-DD" after an item on order.

☐ Insta360 Link 2 Pro (owned)
☐ USB cable; the monitor's USB ports or straight into the laptop
☐ A Mac or Windows machine for one session with Link Controller, only if gestures are off

Linux sees it as a standard UVC webcam, two video nodes, MJPEG and H.264.
v4l2-ctl --list-ctrls shows the gimbal: pan_absolute (±522000), tilt_absolute (−324000…360000), zoom_absolute (100–400), continuous autofocus, white balance.
Tracking runs inside the camera. Turning modes on (tracking, gestures) goes through a vendor USB extension unit that Link Controller (Windows, macOS) uses; Linux doesn't expose it as a normal control.
The monitor (Dell S2725QC) probably has one USB upstream (USB-C), so it likely can't hand the camera to a second computer. Check its menu for "KVM" or "USB selection".