Containers work because your kernel is close to identical, and ship their own copy of everything else making them bloated, and incompatible at a user-mode level

Containers work because your kernel is close to identical, and ship their own copy of everything else making them bloated, and incompatible at a user-mode level (no graphics drivers!). If my kernel was also very different from yours (which could just be a couple of kernel options or major versions) I'd need a virtual machine.