You're really not adding good content here. This is crap, that gets owned all the time... Why? What's the actual comparison? What model/approach makes the difference?
Please add something meaningful. Otherwise it's just ranting/fanboying over your preferences - we can be better than that on this board.
We really can't. Even if I reply with reasons, they will just be argued, ignored or downvoted by people who don't know what they're talking about. People only believe what they want to believe, or whatever a famous person says. (not to mention none of the people replying to me are providing any contrary evidence, just more spurious claims, but those with unpopular opinions get the downvotes)
Have you actually looked at the 0days? Almost always it's confined within the sandbox. You have to chain it with an sandbox breakout exploit to make it useful.
> ChromeOS, one of the more secure operating system s (behind QubesOS, on par with Android and iOS)
I don't know what features ChromeOS has over Linux but I wouldn't considered Android or iOS particularly secure, and Qubes isn't either directly, it's just a tool that can help in some cases.
But in normal Linux land things are moving too: Flatpack, Wayland, immutable rootfs, systemd service sandboxing, ...
Also browsers on GNU/Linux are generally well sandboxed, the interfaces are there.