Right. DJI's FPV video link has around 60mbit capacity, 50mbit used for video in stock form. I think Walksnail is similar.
For FPV/"freestyle" cinema and even FPV YouTube videos, the onboard cinema camera will be totally separate from the video link. In the case of FPV, this will be "cinelifter" FPV drones which lift RED/Arrai/BlackMagic cameras, or "freestyle" FPV drones with a GoPro.
For "camera" style drones, a separate gimbal camera from the "main" flight camera will be employed. These often have real-time capability, but with downscaling and a higher-latency / lower-resolution video downlink, like DJI's Zenmuse series found on the Matrice and Inspire drones. On these drones, you basically pick and choose what's sent to your display given the downlink limitations, but you also have a much higher latency tolerance as they can fly themselves.
For FPV/"freestyle" cinema and even FPV YouTube videos, the onboard cinema camera will be totally separate from the video link. In the case of FPV, this will be "cinelifter" FPV drones which lift RED/Arrai/BlackMagic cameras, or "freestyle" FPV drones with a GoPro.
For "camera" style drones, a separate gimbal camera from the "main" flight camera will be employed. These often have real-time capability, but with downscaling and a higher-latency / lower-resolution video downlink, like DJI's Zenmuse series found on the Matrice and Inspire drones. On these drones, you basically pick and choose what's sent to your display given the downlink limitations, but you also have a much higher latency tolerance as they can fly themselves.