It depends on what you need it for. Personally I needed it in order to optimise the remote operation of my online shop. There is also such a thing as PWA. Read about shopware vue storefront pwa vs magento pwa . I personally found it useful .
By the way, if you are interested too, I will leave a resource here https://dinarys.com/blog/shopware-pwa. PWAs provide session continuity, which can have a positive impact on conversion rates when it comes to ecommerce sites. Even if the user has lost internet connection, they can still browse and add items to cart, enter the necessary information in checkout, etc. Checkout will be completed automatically when the customer is online as PWA synchronises the data and updates it in the cache. In short, it's a very useful thing for running a business.