The MemberPress has restricted a particular wrapper to 360px, and it loads on top priority, which is causing the smaller layout on the logout page:

By default, the platform does not have this option. You can use the following CSS code.

Please follow the steps below:

    1. Go to BuddyBoss - Theme Options

    2. Under Custom Codes, enable CSS

    3. Append the following:

.mepr-login-page .mp_wrapper {
  max-width: 100% !important;
}

    4. Save changes.

Note: Any modifications are considered as custom work already. Know more about our Support policy here: https://www.buddyboss.com/support-policy/

Screenshots

Without Code:

With Code: