cloudten10
Hi
Your question is not clear,
if you want to hide submenu, you can open the Menu module and turn off show submenu items. Or change the menu from the menu module published on off-canvas module position.
if you do not want to show the off-canvas sidebar in PC view, you can open template style > Layout > responsive layout > Large > Click on EYE ICON near off-canvas module position to hide it in large display.
save and check.