A lot of the snapping tools put on the [Q] Menu just straight up do not work with the move arrows. If you just hold and drag to move the item it should work.
Edit: “A lot” may be misleading, the only other instance I can think of is:
I’m aware of grid snap ignore Z not working for gizmo handles. The rest of the grid settings should function for gizmos. There’s been a lot of changes in 0.18.0.0 to improve things.