Sticky only secondary menu

There has recently been a contribution related to the Sticky Menu.

https://generatepress.com/forums/topic/sticky-secondary-and-primary-menu

There it was mentioned that the second menu sticky can also be made via CSS

https://generatepress.com/forums/topic/sticky-secondary-and-primary-menu/#post-817259

with this Code

.navigation-stick + .secondary-navigation {
    position: -webkit-sticky;
    position: sticky;
    left: 0;
    right: 0;
    top: 62px; /* Adjust this number if needed */
}

I'm currently using a plugin for this (but of course I'd like to do without the plugin).

My question is whether it would be possible to make the first menu sticky when using the code above, so that only the second menu remains sticky?

Many thanks.