After reading this link (and the following posts) I checked in my computer.
tester@lenovo-v130:~$ ubuntu-security-status 1832 packages installed, of which: 1673 receive package updates with LTS until 4/2025 152 could receive security updates with ESM Apps until 4/2030 7 packages are from third parties Packages from third parties are not provided by the official Ubuntu archive, for example packages from Personal Package Archives in Launchpad. For more information on the packages, run 'ubuntu-security-status --thirdparty'. Enable Extended Security Maintenance (ESM Apps) to get 10 security updates (so far) and enable coverage of 152 packages. This machine is not attached to an Ubuntu Advantage subscription. See https://ubuntu.com/advantage tester@lenovo-v130:~$
Why is Extended Maintenance needed for apps in Ubuntu 20.04.x LTS in 2021?
Which are those 10 security updates that need ESM? Is there a link where they are listed?
Where are the 152 packages (that need ESM) listed?