The old method of renaming your channel was long overdue and you needed to change the name and profile image of your respective Google Account. Not only will this change your YouTube profile, but it will also actively change your Gmail identity.
However, you can now go to the YouTube Creator Studio Backend Management area and change the name of your channel without having to touch your Gmail or Google Account. This has always been a frustrating process, so the process is great to see YouTube criticize the board and actively streamline.
You can also swap your profile picture, which means you can easily update channel branding from now on. That said, if you have a verified YouTube channel, any changes you make to your name will result in your verification being removed. You will need to reapply to retrieve the checkmark badge on your channel.
- To change your channel name on mobile, you can tap Your channel > Edit name > Save. Changing the profile icon is the same. Tap Your channel > Profile icon.
- From the desktop you can change your YouTube channel name within the Creator Studio > Customization > Basic Info.