You can learn a lot about Linux by just trying different distros, but using Proxmox will force you to learn a lot of in-depth ...
I've used Windows for decades, but I tried Linux to see if it's truly 'easy' now - and one thing surprised me ...
Copying the homework of the smartest kid in class.
Tiny Core Linux is an incredibly small, modular distro that can be customized to your specifications. Here's how to get started.