Summary
Improve compression ratio of SquashFS filesystem on the
installation media.
Hi Bohdan, as a member of QA, I'll happily support any proposal that improves the installation speed (the image size is not that important from my POV). Chris found that dropping the nested ext4 filesystem can get us substantial gains in this area, as well as changing xz to zstd. I see he already provided you with links to the respective tickets. Perhaps you can work with him to make this change a reality (and benefit in both areas - speed and size)? QA would really appreciate it :-)