Comment 7 for bug 1877589

Yes, I am pretty sure:

$ apt-cache policy mutter
mutter:
  Installed: 3.36.2-1ubuntu1~20.04.1
  Candidate: 3.36.2-1ubuntu1~20.04.1
  Version table:
 *** 3.36.2-1ubuntu1~20.04.1 500
        500 http://ru.archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     3.36.1-3ubuntu3 500
        500 http://ru.archive.ubuntu.com/ubuntu focal/main amd64 Packages