LEAP 15.1 Do I gain any security by running my distro within a local VM?

Hi Everyone: Is there any general opinion on the security of the various VM's discussed in this forum? The linked article (below) is an example for VBox, which I have been using for years. My goal is to protect my personal data on main computer by "sandboxing" (I'm not sure that's the right term) the entire OS in a VM, but I don't really know enough about computers to know if that offers any extra security. For instance, I remember that some (all?) VM's report to at least some applications that they are indeed executing within a VM - so a worm within the VM could then know to hack the Host kernel (see article). So am I really gaining any protection by running my main computer within a VM sitting on top of my Host OS? (in this case, LEAP 15.1)
https://www.zdnet.com/article/virtua...ed-researcher/

Specificially, I'm wondering if Xen or KVM are known to be any more secure than VMW and VBox.

Thanks, PattiM:)