Comment 3 for bug 1968117

After enabled the proposed I could install this package successfully.

u@Libra-14:~$ ubuntu-drivers list
oem-sutton.simon-balint-meta

u@Libra-14:~$ apt-cache policy oem-sutton.simon-balint-meta
oem-sutton.simon-balint-meta:
  Installed: (none)
  Candidate: 20.04~ubuntu1
  Version table:
     20.04~ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu focal-proposed/main i386 Packages

u@Libra-14:~$ sudo apt install oem-sutton.simon-balint-meta
The following NEW packages will be installed:
  oem-sutton.simon-balint-meta
0 upgraded, 1 newly installed, 0 to remove and 355 not upgraded.
Need to get 2,084 B of archives.
After this operation, 14.3 kB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu focal-proposed/main amd64 oem-sutton.simon-balint-meta all 20.04~ubuntu1 [2,084 B]
Fetched 2,084 B in 1s (3,503 B/s)
Selecting previously unselected package oem-sutton.simon-balint-meta.
(Reading database ... 159867 files and directories currently installed.)
Preparing to unpack .../oem-sutton.simon-balint-meta_20.04~ubuntu1_all.deb ...
Unpacking oem-sutton.simon-balint-meta (20.04~ubuntu1) ...
Setting up oem-sutton.simon-balint-meta (20.04~ubuntu1) ...

u@Libra-14:~$ sudo apt update

u@Libra-14:~$ apt-cache policy oem-sutton.simon-balint-meta
oem-sutton.simon-balint-meta:
  Installed: 20.04~ubuntu1
  Candidate: 20.04ubuntu3
  Version table:
     20.04ubuntu3 500
        500 http://lenovo.archive.canonical.com focal/sutton.simon amd64 Packages
        500 http://lenovo.archive.canonical.com focal/sutton.simon i386 Packages
 *** 20.04~ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu focal-proposed/main i386 Packages
        100 /var/lib/dpkg/status