I noticed in a recent update that the User menu had been updated to a dropdown (which I love BTW) but my client wanted the User menu on the right side of the page like it was before. By adding this to either your Appearance > Customizer > Custom CSS section, or if using a child theme, go ahead and add this to the style.css and make sure it is enqueued within the functions.php.
***** I did adjust the height of my header logo so my header height is slightly different. You can adjust this by increasing or decreasing transform property Y axis which in this current example is 65px. Simply adjust this number until you get it in the right position**
@media screen and (min-width: 992px) {
.header-navbar__menu>ul>li:last-child {
position: absolute;
z-index: 99;
right: 0;
top: 0;
transform: translate(-85%, 65px);
}
}