What is the difference between PWA and Web App

A progressive web app (PWA) is a type of web app that can be installed on a device and behaves more like a native app. PWAs are faster, more reliable, and can work offline, while regular web apps require an internet connection.
  Progressive web app (PWA) Regular web app
Experience Feels like a native app, with features like push notifications More limited experience
Installation Can be installed on a device's home screen Can't be installed on a device
Offline use Can store data on a device to access content offline Requires an internet connection
Development Cheaper and easier to develop and maintain Can be used on any device with an internet connection
PWAs are a good choice when you want to provide an app-like experience to users without requiring them to download an app. They can also be a good choice if you want to reach a wide audience because they can be accessed on any device with a web browser.
Examples of PWAs include the Spotify and Starbucks websites.
A Progressive Web App (PWA) can launch a video and prevent the screen from locking by utilizing the "Screen Wake Lock API", but cannot lock the screen. Progressive Web Apps (PWAs) have the capability to access device location information
Disadvantages of progressive web apps (PWAs) Limited offline capability. Many native apps can run even when the user is not connected to the internet. Less convenient. PWAs have limited functionality on some operating systems and fast battery consumption.