jitsi-meet/css/_popover.scss

.popover {
    z-index: $popoverZ;

    .popover-content {
        position: relative;
    }

    &.hover {
        margin: -16px -24px;

        .popover-content {
            margin: 16px 24px;

            &.top {
                bottom: 8px;
            }

            &.bottom {
                top: 4px;
            }

            &.left {
                right: 4px;
            }

            &.right {
                left: 4px;
            }
        }
    }
}

.excalidraw .popover {
    margin: 0;
}