Today, Lightroom opens in Lightroom Mobile.
I have not used nor am interested in using Mobile. How can I get back to my desktop and my catalog
What do you mean when you say that Lightroom opens in Lightroom Mobile? They are separate programs. Lightroom Mobile is installed on your mobile device. The regular Lightroom program is installed on your computer. What are you seeing that makes you believe that is opening in Lightroom Mobile?
Lightroom Mobile only runs on mobile devices: phones and tablets.
Your desktop and laptop computers always run the desktop version of Lightroom.
Mac or Windows? What version?
What exact NUMBER version of Lightroom?
When you start Lightroom, in great detail, what happens and what do you see?
I resolved the issue.