Yes, you can edit the default environment name in Microsoft Power Platform Admin Center. However, you should be aware of you can't edit the environment's properties for the below kind of environments:
The environment that is being provisioned.
The disabled environments, and you must first enable it to be able to edit it.
How to edit environment name in Power Apps?
As Administrator, login to Power Platform admin center.
Once you log in, the environment list will be shown.
Click on the environment name that you would like https://inloggenhulp.com/ to change.
Again, click on the Edit button to edit the environment properties.
Set the environment name to a user-friendly name as you prefer, then click on Save.
Wait a moment until the environment properties edit is completed successfully.
Once the edit is done, the environment state should be now Ready as shown below.
