How do I uninstall my browser along with all its data?

I recently installed chromium, created a new user and logged into a website. After my work was done, I removed chromium with "sudo dnf remove chromium".

A few days later I installed chromium again through dnf. My user account was still there and I was logged into the same site.

Is there a way to avoid this and uninstall an app along with all its user data?