Sure, and there's also an extension to install a web page as an app similar to Chrome. The point is that, out of the box, it lacks some features that I enjoy. Extensions are great and I use plenty of them, but that doesn't mean that Firefox has those features, it just has extensions that have them.
Firefox is great, don't get me wrong, I'm definitely preferring it, but that doesn't mean it doesn't have all the features that I wanted up front.
I wasn't a fan of Firefox either and personally lived using edge. When the whole web integrity thing started happening, I felt like I should switch to Firefox and haven't looked back.
I still have some complaints, like you can't install sites native app which I used a lot. I don't think tab groups have been implemented yet, which isn't a huge deal but very useful. And there were a few others I can't remember off the top of my head. In the end I value my privacy a bit more so I've decided Firefox is worth it.
Plus mobile ad blocking is a god send.
Sounds like you were just a quitter. I counted to 100 all the time to show off.
The PWA app works decent, but, unless I did something wrong, it would open links in itself instead of my main Firefox window which wasn't what I'd want normally.
I still use it, but it's definitely not as nice as I'd want it to be.
Definitely one of those things that's minor and I can look past though.