Thank you for your answer, Jack.
I don't have a timeline, just the Draggable.
I solved the problem by setting scrollLeft of the element after initiating Draggable. I can swear this did not work when I tried it last night, but there you go... The dangers of late night programming, I guess ?
The solution is like this (in the mounted lifecycle method)
Draggable.create(this.$refs.lo_sectionList, {
type: "scroll",
dragClickables: true,
lockAxis: false,
zIndexBoost: false,
onDrag: this.onTimelineDrag,
});
// * Set scroll left to the stored position
this.$refs.lo_sectionList.scrollLeft = this.globalVars.timelineScroll;