Use SFDX: Log Out from Default Org command. It will log out and remove the Default Org set in the project.

Use the Authorize command(“>SFDX: Authorize an Org”) to login again.

Use SFDX: Log Out from Default Org command. It will log out and remove the Default Org set in the project.
Use the Authorize command(“>SFDX: Authorize an Org”) to login again.