Description

In Full Site Editing.
Site Title block.
I am not able to remove the underline.

Step-by-step reproduction instructions

1. In TT1 Full Site Editing.
2. Add a Site Title.
3. Notice the underline.
4. It can not be removed.

Expected behaviour

I expected there to be a way to remove the underline.

Actual behaviour

This is what I see:

Backend:

Frontend:

WordPress information

• WordPress version: 5.7
• Gutenberg version: 10.3.2
• Are all plugins except Gutenberg deactivated? Yes
• Are you using a default theme (e.g. Twenty Twenty-One)? TT1

Device information

• Device: Desktop
• Operating system: OSX
• Browser: Chrome