View on PC screen

One situation that I have not been able to understand is how to improve the user experience regarding the interface when accessed through the PC browser.

is it possible to have one user experience on PC screen and one on mobile?

I really want to invest in knowledge in this beautiful tool that is AppGyver, but I’m having a hard time finding material and or information to know if it’s really possible to make UI / UX on the PC better, or be able to adapt in a more responsive format and not just auto expandable, could anyone let me know?