Since accordion is built on collapsible (might be right?),
collapsible's default open determination should consider defaultValue / value, not just false.
Additional context
It seems icon is displaying correctly...? or maybe it is too fast...
Your environment
Since it can be checked on chrome, I attach my mac and chrome info only
Bug report
Current Behavior
Can check layout shift when click (Command + Shift + R) on Accordion documentation example
https://github.com/radix-ui/primitives/assets/48249867/bcd35aaa-fcaf-4baa-806f-b520b8f8d962
Expected behavior
It should be initially open when defaultValue / value has some open accordion items
Reproducible example
Can check layout shift when click (Command + Shift + R) on Accordion documentation example
Suggested solution
Since accordion is built on collapsible (might be right?), collapsible's default open determination should consider defaultValue / value, not just false.
Additional context
It seems icon is displaying correctly...? or maybe it is too fast...
Your environment
Since it can be checked on chrome, I attach my mac and chrome info only