Other grids seem to have it. I just need to figure out what property controls that.
So, if you leave it to default all columns in, it will try and squish them into the grid.
If you expand a column, you can see that the scroll appears.
If you want all of your columns from the BAQ, you actually have to go to Grid Model > Columns and add each and every column in order for it to look nice with a scroll bar. 
I may submit that as a bug report because thatās tedious AF.