Canonical Ubuntu engineers, in collaboration with community members, have compiled a list of library packages on the target server for the i386 Ubuntu 20.04 LTS release, which is now published at: https://code.launchpad.net/~ubuntu-core-dev/ubuntu-seeds/+git/i386.
Some packages will not be included in Ubuntu 20.04 LTS or will have a different name for the same library. These are such as gcc-8-base, libhogweed4, libnettle6, libperl5.28, libsensors4, libssl1.0.0, wine-stable-i386.
The following packages have been added to the targeting list:
For reference, here is a list of source packages that will continue to be compiled for the i386 architecture in Ubuntu 20.04 LTS so that i386 target packages can be installed.