I also thought what you have described. However I have noticed that there are some advantages to WSL2. The biggest is that VS Code is so tightly integrated. It is truly plug and play. With virtual machines I had to constantly keep fiddling with ports and network interfaces and IP addresses. It really "just works" when you use VS Code with WSL2. Another is that Windows is smart about starting and stopping the Linux VM. I don't have to manage it. It starts up when you open a terminal or open your project in VS Code. It shuts down after some time if you don't use it. No memory usage, no CPU usage.