It's related to this change
[2025-06-26] CHG: symbolic links to folders are not dereferenced in open and save dialogs to more likely preserve user intent and follow platform conventions.
I've described details of this change at
Unfortunately, it's not possible to let the Windows open dialogs resolve Shell links (*.lnk shortcuts) and not dereference symbolic links and junctions points at the same time.
I hope the workaround is sufficient for you. You can also always right-click on the shortcut inside an open dialog, choose to open the target location, and proceed from there.