Beta software program

Yes, you can. You just have to delete the developer beta profile, then you go to beta.apple.com, click where it says. “get started”, you’ll get redirected to another page, on that page, click on iOS, then scroll down to “Get Started”, then click on “enroll your iOS device”, than scroll down until you see a blue button that says: “Download profile”, after that just repeat the same steps you did while installing the developer profile. Hope this helps!

Not yet. If you have a “bootleg” developer beta you will have problems going forward, so I hope the iOS 14 you have was obtained from an invitation from Apple to install it. Among other things there’s a good chance an unofficial iOS 14 installer is hacked and/or contains spyware.