Steam не может быть установлен. Проблема с зависимостями пакетов

Я пытался установить Steam на 64-разрядную версию Ubuntu 20.04, но каждый раз получаю следующие ошибки:

~$: sudo apt-get install steam
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 steam:i386 : Depends: libgl1-mesa-dri:i386 (>= 17.3) but it is not going to be installed or
                       libtxc-dxtn0:i386 but it is not installable
              Depends: libgl1-mesa-glx:i386 but it is not going to be installed
              Recommends: mesa-vulkan-drivers:i386 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Я пробовал это:

~$ apt-cache policy libgl1-mesa-dri:i386 libgl1-mesa-glx:i386
libgl1-mesa-dri:i386:
  Installed: (none)
  Candidate: 20.0.4-2ubuntu1
  Version table:
     20.1~git2004290730.35ee6b~oibaf~b -1
        100 /var/lib/dpkg/status
     20.0.4-2ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/main i386 Packages
libgl1-mesa-glx:i386:
  Installed: (none)
  Candidate: 20.0.4-2ubuntu1
  Version table:
     20.0.4-2ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/main i386 Packages

И это:

$ apt policy libgl1-mesa-dri
libgl1-mesa-dri:
  Installed: 20.0.4-2ubuntu1
  Candidate: 20.0.4-2ubuntu1
  Version table:
 *** 20.0.4-2ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

Плюс это:

sudo dpkg --add-architecture i386
sudo apt-get update

И, наконец, это, которое ничего не возвращало:

dpkg --get-selections | grep hold

И это не помогло.