I have also used pretty much every EDA package around, and having similar issues. Windows 10 / Ryzen 1700 / 16GB / Samsung 970 SSD / FirePro graphics, Microsoft keyboard & Logitech mouse. Drivers and F360 all up to date.
I would really like to know the thought process that lead to thinking it was preferable to click on an object, select move tool, and then move it. Click and then use arrow key is standard.
Also, selecting a group and then using arrow keys should work but doesn't, but selecting a group and then click-dragging with the mouse does, without selecting move tool. These kind of inconsistencies are super frustrating, it's forcing the user into a predefined method instead of allowing flexibility. Rant ended.