Do you think the Firefox plugin for 1password (random example) is a plugin that runs inside 1password and allows you to use Firefox? Does the Linux driver for ext4 allow you to use a Linux kernel from within the driver, or the other way around? WSA is a "Windows subsystem" that allows you to run Android. That's it. But leave it to HN to always have someone make the exact same comment whenever WSL or WSA is mentioned.