Confirmed. Another mobile bug.

Thing is, I tried to disable the context menu using javascript, and when I do that, it renders the hamburger button useless, so it's like there wasn't a function coded in at the UNA level for mobile users for that feature.

let isDragging = false;


document.addEventListener('contextmenu', function(e) {
    e.preventDefault();
}, false);


document.addEventListener('touchstart', function(e) {
    // Allow drag and other touch interactions
    if (e.touches.length === 1) {
        isDragging = false;
        setTimeout(() => {
            if (!isDragging) {
                e.preventDefault();
            }
        }, 300); // Adjust timeout to desired long press threshold
    }
}, false);


document.addEventListener('touchmove', function(e) {
    if (e.touches.length === 1) {
        isDragging = true;
    }
}, false);


document.addEventListener('mousedown', function(e) {
    if (e.detail > 1) {
        e.preventDefault();
    }
}, false);


document.addEventListener('touchend', function(e) {
    if (e.touches.length > 1) {
        e.preventDefault();
    }
}, false);

Yeah, code needs updated for mobile.