Are _dragX and _dragY safe to use?

[Simon-Tang]

For my use case, I need to access the x/y MotionValue for a draggable element, and it seems _dragX and _dragY are what I need. However the underscore and this CHANGELOG entry suggest it's meant for internal use.

motion/CHANGELOG.md

Line 3366 in ecd97f7

- Internal: `_dragX` and `_dragY` external `MotionValue` targets for drag gesture.

Just curious if there are plans to solidify this API or if it might change later.

As an aside, it seems my tab freezes up if I use dragConstraints={ref} with _dragX on the same element.

Also, noticed that _dragX and _dragY are used together throughout the codebase, but the one exception is https://github.com/motiondivision/motion/blame/ecd97f7dce8954be300aa73ab6a96208437941c5/packages/framer-motion/src/render/utils/is-draggable.ts#L4, where only _dragX is referenced.