Functionality already available in LabVIEW 2019 and later. The Arrange VI Window shortcut in Quick Drop (Ctrl-Space, Ctrl-F) will reposition all the diagram objects relative to the origin, in addition to resizing the window itself to fit contents.
A really small thing (and cosmetic...), but could you enable 'Adjust Pane Origin' for the block diagram, please? Since LabVIEW 19, there's an option to adjust the pane origin on the FP (Edit > Adjust Pane Origin)
I would like the option to do that on the BD too as I like having BD dots on, but the origin looks out of place (unless I manually move the BD).