Where should I install plugins when using remote development with WSL?

The settings menu for PhpStorm has the entries "Plugins (Host)" and "Plugins (Client)" when I'm connected to a project I have in WSL. Where should I install extensions? It seems like the same ones are available on both sides, is there any difference when using WSL? (I imagine if actually connecting to a remote server, you might have the same setup regardless of which machine you connect to it from?) Is it just that the host extensions won't be available if I open a non-WSL project? Or is the remote "client" different from the main PhpStorm installation under Windows?