Magento 2, How to setup locally pwa studio for testing purpose only and please describe the pwa steps.I have used xampp with php 7.2.19 version.
Currently Magento have launched pwa-studio, but there is a theme on which Magento is working currently name "Venia".
You may find the steps described by Magento itself on this link (https://magento-research.github.io/pwa-studio/venia-pwa-concept/setup/).
You can simply colne from the repo and get to work. Let us know in case if you face any issue to do so further.
@Edit: If using windows it is recommended to use docker.
Magento PWA Studio v5.0.0 released last month introduced a new handy command @magento/create-pwa which helps you set up a PWA project way easier.
We did try different ways before this command was in place, but using @magento/create-pwa appears to be the easiest option to set up an initial PWA Studio project structure using the Venia storefront as a template.
We put together a step-by-step guide here which takes advantage of that new @magento/create-pwa command, you can give it a try. Hope it saves you time when exploring PWA Studio.