Hi Nas,

1. Have you tried to disable it from Template Options > Menu tab > Menu Type: MegaMenu https://www.joomshaper.com/documentation/helix-framework/helix-ultimate-2/menu-navigation
2. Yes, you can always use custom CSS as well, here is a example code:

@media screen and (min-width: 1100px) {
#offcanvas-toggler, #offcanvas-toggler > span {display: none; visibility: hidden;}
}

Both methods should work for desktop view, tested many times!

But if you want to hide [=] icon on all views (Desktop, Tablet and Mobile) let us know, it request using different CSS code!

First, you don't have [=] icon on desktop view.

Second, my CSS code was to hide that icon in desktop view only.

For all views use

#offcanvas-toggler.offcanvas-toggler-left,
#offcanvas-toggler.offcanvas-toggler-left span {display: none !important;visibility: hidden;}

You're welcome.

...but next time try to give more details, for example, from what view you want to hide element. It will help us give you a right answer faster.