Remove 'Arrow up' function completely

I apologize in advance, but was not able to find a fix for this issue in the forum previously:

Therefore, how do I disable 'back up' arrow' in the bottom right corner when you scroll down?

Thank you!

Somewhere in your css add this code:

    display: none !important;
}```

That worked, thank you!

Update. It stopped working after the update to 2.6. Any ideas how to fix it now?
Thanks in advance.

#scroll-up {
    bottom: 30px;
    display: none;
    height: 48px;
    opacity: 0.3;
    position: fixed;
    right: 30px;
    width: 48px;
    /* add line below */
    display: none !important; 
}

Thanks, Jack. Can confirm that did in fact fixed the issue. Appreciate it.