Please provide a way to log out of the site.
It doesn’t matter if logout is handled automatically after a set time. Because the site must be logged into, people still need to have an explicit logout button/link so they know you are not following us around the Internet and logging our activity to sell.
Experienced users will look for such a clickable button or link in the upper-right corner of the page. It should either be an explicit “Logout” (or “Signout”) link or on either the “hamburger menu” or the user icon menu.
I’m a retired developer and your site looks nice except for that one frustration.