My view is that WSL2 will help developers who are stuck on Windows (many enterprises force Windows on users).

I don't think Linux will be affected as much. Moreover, Linux is better than ever:

- you can buy laptop with Linux from two companies: Dell and System76, soon from Lenovo

- performance can't be beat (especially for development, with native docker and kvm for virtualization)

- amazing package managers, with fwupd you can even update firmware

- graphics stack is really good and getting better, firefox on wayland with video decoding support, wayland with great hidpi support

- work on chromium on wayland in progress (beta already available), we will have electron apps with hidpi support

- no bloatware (candy crush, 100s of processes...)

- gaming with Proton is miles better than gaming on macOS, still behind Windows for known reasons

Obviously if you need Adobe/Office, Linux loses many points :)