from Valve coder Pierre-Loup Griffais notes that Ubuntu 19.10 (and future
releases) will no longer be officially supported by Steam: "Ubuntu 19.10 and
future releases will not be officially supported by Steam or recommended to our
users. We will evaluate ways to minimize breakage for existing users, but will
also switch our focus to a different distribution, currently TBD." A
post on How to Geek offers a little more detail on the reasons for this:
This is all because Canonical announced plans to
drop 32-bit packages and libraries from Ubuntu 19.10. These packages enable
32-bit software to run on 64-bit versions of Ubuntu.
While most Linux applications will get along just fine, this is a huge blow to
Valve’s Steam. Many Linux games on Steam are only available in 32-bit form—they
work on 64-bit Linux distributions, but only with the 32-bit libraries. As
Phoronix recently pointed out, this also affects the Wine compatibility
layer that allows running Windows software on Linux—Wine won’t be able to run
32-bit Windows software anymore.
Steam’s compatibility layer for running Windows games on Linux would also
not work for 32-bit games.
After Canonical’s announcement, Valve’s Pierre-Loup Griffais tweeted that Ubuntu
19.10 and future releases “will not be officially supported by Steam or
recommended to our users.” Valve will officially support and recommend a
different Linux distribution in the future.