Better resource utilisation, control, freedom, not requiring google's permission to do anything. When you are inside a container you are still under the control of another OS... the lack of a bunch of other practical limitations of running inside a container that I'm not familiar with because I don't run my frickin desktop inside a container! why would I do that, it's an unnecessary limitation and increases complexity - maybe some people do if they benefit from containers for a very specific use case, but this does not make it a "Linux Laptop" first and foremost.