I have a similar problem with the overlapping
When there are too many people reporting to the same person the chart quickly distorts, especially if you reduce the browser size
I added a dummy user as a kind of department title so that some users would drop down, but they don’t drop down far enough to allow the gap between the people reduce.
https://www.reavalleyscouts.org.uk/orgcharttest/
Could users be assigned a tier level so that you could depict them on a lower level while keeping the reporting line the same?
Also, being able to have multiple org charts as mentioned before would be excellent.
The ability
