This is false.Portable Linux build works on any Linux platform supported by Chromium.
(this is about the AppImage, but same issue with Portable Linux)hi @chdiza ,see ungoogled-software/ungoogled-chromium#2001 (comment) . The thing is that the chromium code does not compile anymore when using an older version of glibc, and my tries to patch this failed. I switched to a new builder image (debian bookworm instead of bullseye), but that leads to the error above on ubuntu 20.04. The image runs fine under ubuntu 22.04, so maybe you might consider upgrading.
What you also might do is to try ungoogled chromium as flatpak which is available at flathub.org. flatpak's don't rely on glibc on the host system.