click-drag-option-unclick-releaseoption aka click-drag-alt-unclick-releasealt does not work on Mac OS Catalina to open a link in a dragged-to pane. The cursor-textbox text changes from “Insert link here” to “Open in this pane” but upon unclick the link just sucks back to where it came from and the dragged-to pane doesn’t change.
Possibly related to the fact that this key combination is native on Mac for duplicating items in mid-drag. If anyone knows how to disable this native behavior on Mac please let me know (Googling was fruitless) since I never use it and disabling it might work to fix this bug.