Miraland: I was just shocked. As a result, when this message pops up, you need to visit the cross with a gamepad to close the warning and the gamepad works. if you press ok, the gamepad turns off. Well done. It's good that I haven't bought a loyalty pack yet, although my hand has already reached out to pay.
That Warning is completely misleading
I had the same issue back in 2021 when I played the game on an 1366x768 TV. If I remember correctly the game needs at least a resolution of 1024x768 with no GUI scaling applied. You can get rid of the warning by lowering the GUI scaling in the video settings tab. You can also ignore the warning and play the game but know that the gampad GUI needs more height than the mouse GUI and those additional elements will be cut off if the current GUI scaling does not fit in the vertical space your current resolution provides. If you know the button mapping oft the controller (like pressing Y in the skill tab to map skills to different controller buttons), those additional elements are irrelevant.
I hope my information is still relevant to you, or at least, is helpful for other people who may get confused by this misleading error message.