Distinguish intentional card taps from touch scrolling
The practical problem
A gallery card may navigate when a user tries to swipe the page, especially if pointerdown immediately triggers a game launch.
Implementation protocol
Wait for a valid click activation or use a measured drag threshold; handle pointercancel and retain normal anchor behavior for navigation.
Worked scenario
Swipe vertically across a large game tile and confirm the catalog scrolls without opening the game. A stationary short tap should still activate it.
What could go wrong
Preventing all touch defaults can break page scroll and pinch zoom.
Acceptance criteria
Test slow scroll, fast scroll and stylus input.
Source material and evidence boundaries
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