ChromeOS is quite literally desktop Linux. If instead of a custom immutable Gentoo distribution they chose to base on Fedora Silverblue would it be any different? They would still need to offer Debian software through a layer of containerization and the user would still not have root level access.
Since ChromeOS is for casual users who will never need to install tools system-wide, I don't really see that much of a limitation in being able to only use things as non-root.
Since ChromeOS is for casual users who will never need to install tools system-wide, I don't really see that much of a limitation in being able to only use things as non-root.