Name the movement that interferes with the task
A media interface can animate recommendation panels, hover previews or transitions separately from the programme being watched. A reduced-motion preference gives supporting websites information about a user's desire to minimise nonessential motion. It does not automatically pause every video or guarantee that every application responds in the same way.
Identify the specific obstacle: a moving recommendation makes its title difficult to read, a transition changes the control location, or a preview begins while the viewer is navigating. That description is more useful than asking to remove all video from a video player. The programme and decorative interface effects serve different purposes.
A hypothetical recommendation panel
Suppose a viewer enables the operating system's documented reduced-motion preference and returns to an authorised player's recommendation panel. The panel still slides between programmes while they try to read the descriptions. Record the system preference, browser or app version and the actual movement that remains. Do not claim the setting failed everywhere from one component's behaviour.
Check for a player-specific motion, preview or autoplay preference through its official controls. If one helps, note exactly which behaviour changes. A control stopping previews may leave transitions unchanged, and a reduced-motion response may simplify a transition rather than remove it. Assess the browsing task the viewer needs, not the label of the setting alone.
Avoid relying on an unknown extension that rewrites the entire page before establishing the original behaviour. Such changes can also affect captions or controls and make support reproduction harder. A simple record of the normal interface with the documented preference provides a clearer starting point.
Questions answered
Will reduced motion automatically stop the programme?
Do not assume that. It is a preference for reducing interface motion; application behaviour and playback controls need separate checks.
What should I report if recommendations keep moving?
Name the component, documented preference, environment and actual browsing task that remains difficult.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.

