@andy_w I have checked the #2, with Drupal 10.0.1 and gin as admin theme.
Ste...

@andy_w I have checked the #2, with Drupal 10.0.1 and gin as admin theme.

Steps to reproduce the issue:

1. After user logged in, go to Structure > Block layout > Custom block library
2. Add/Edit any custom block, Try to click on the "Back to site" link from the top, it will not redirect to the front page of the site.

After the patch, when you Add/Edit any custom block, Try to click on the "Back to site" link from the top, it will redirect to the front page of the site. The patch is working fine.

After patch: