"Bad UX" can't be generalized that easily for a simple visual effect, that's highly dependent on the integration. A good integration would: - consider how hea

"Bad UX" can't be generalized that easily for a simple visual effect, that's highly dependent on the integration. A good integration would: - consider how heavily to use the effect to not overload the ui - query for feature support to avoid adding all additional decorations if blur isn't available - query for display & video features to avoid rendering the effect on devices that likely don't have a capable gpu - query for user preferences and serve solid colors with good contrasts to users who might struggle with the busier background - limit the extent of the effects and shadows depending on available space - tweak the blurring and opacities to ensure good readability in the specific UI, regarding how complex or contrasted the background under blurred areas will be - ensure blurs and shadows scale adaptively with the typography to ensure consistent visuals UX is by definition the design of how a user experiences the complete app and interaction, it's not made or broken by individual stylistic choices