This reminds me of the Docker issue they fixed in Omarchy recently. Basically you could get root through the docker socket, because the default user groups included the docker group.
I think most of the complaints are about some choises Canonical (the stewards of Ubuntu) have made in the last few years. Most notably recently is the change from gnu coreutils to the rust uutils coreutils rewrite.
Hopefully it will be open source, so you can build it yourself. It seems to be related to gnomeOS…
In the mean time, if you have any other feedback, find us in #gnome-os:gnome.org on Matrix, or leave a comment.