Description

Test with 5.9-RC3 and Twenty Twenty-Two:
Asigning a background color in Styles => Blocks => Paragraph works
Asigning a background color in Pages => Edit => Paragraph works
But the result in the created webpage is different (see attached screenshot)

as reported in Core Trac: https://core.trac.wordpress.org/ticket/54865

Step-by-step reproduction instructions

see description above

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes