I suspect the average web developer doesn't know or care about @prefers-reduce-motion (even less than @prefers-color-scheme), but for the few that do, I would e

I suspect the average web developer doesn't know or care about @prefers-reduce-motion (even less than @prefers-color-scheme), but for the few that do, I would expect to err on the side of caution, eliminating any animation and any page change that is not made absolutely necessary by user interaction.