Steve Langasek of Canonical the intention to provide users of future releases of Ubuntu with the ability to use libraries for the 32-bit x86 architecture by borrowing these libraries from Ubuntu 18.04. It is noted that support for the i386 libraries will continue, but will be frozen at the state of Ubuntu 18.04.
This way, Ubuntu 19.10 users will be able to install the libraries required to run 32-bit applications and games until at least the end of support for the Ubuntu 18.04 release, which will receive updates until April 2023 (through a paid subscription until 2028). Libraries can be installed directly from the Ubuntu 18.04 repository, to which, as part of the work to update the graphics stack in the LTS branch, Mesa releases from current Ubuntu releases will be transferred for some time, which will partially solve the problem with a possible violation of the compatibility of 32-bit graphics libraries with new system environment and drivers.
Recall that representatives of Canonical initially only the ability to run 32-bit applications on Ubuntu 19.10+ using Ubuntu 18.04 environment containers or snap packages at runtime core18, and announced that support for direct use of 32-bit libraries will be discontinued as of Ubuntu 19.10. Further the impossibility of using Wine in its current form without 32-bit libraries due to the unavailability of the 64-bit version of Wine. It also turned out that some Linux printer drivers remain only available in 32-bit builds. As a result, Valve intent to drop official Steam support on Ubuntu 19.10 and newer releases.
Source: opennet.ru