There's some barrier of entry(buy an account and create documents describing your app) to have a mobile app, with PWA it will be removed and you will have every single website trying to make you "install" their web app, just like every single website is trying to take your e-mail address or make you create an account.
The app experience is almost always better because you always have more screen real estate, higher performance, better persistence and the developer has more opportunities to monetise you which eases the need to shove all the adds technologically possible into your face before you leave and never come back.
Visiting a new website in 2021 has the following installation process:
0) click a link
1) download the website. Websites are bloated these days, things jump around until you download and execute a few MB of JS, CSS, HTML and so on.
2) accept/deny tracking(usually designed to trick you into accepting)
3) accept/deny subscribing to newsletters(usually the skip button is obscured)
4) try to figure out what is this all about, trying to distinguish site element from ads
5) if you still want to continue you probably will need to create an account for anything that's beyond an article. Many times, you will need to create an account even for an article
6) after all that jazz you can actually try out the app/website or consume the article
7) if you like what you see, you need to bookmark/add to home screen
An app experiance is something like this:
0) click a link
1) see screenshots and explanation of what this app is all about, accompanied with reviews and ratings
3) if you like what you se, tap install, make a fingerprint scan or a face scan to download and open the app
4) try out the app. if you like it, it will be on your homescreen to use again. if you don't like it, you can delete it from the same place.
For both cases, any use hardware or system API you will get about the same popup asking you to give access to location/microphone/camera/bluetooth. For the mobile app the experience of managing it will be easier since it will have standardised settings in the device settings and you know the permissions are revoked when you delete the app.
For web apps you don't have an uninstall process. You need to dive into browser settings to remove history, cookies etc.