Well, yes, now looking closer I realize, that the left one has a FAB as well, but I haven’t seen it, because its floating above some blue background 
I prefer if the show me a link to the playstore, which then gives me the official app.
I trust the play store more. A PWA has about the same rights that my browser has (far too much) while I can revoke/deny rights on a regular application.
Again, if I want to open a website, I open it pro-actively via the browser. I do not want some icon on my homescreen. I want something that I can check for its battery and data usage. I want to see “twitter” used 10 MiB in the last month, facebook 20. And not your browser used 30.
PS: My mother, much less tech affine than me, doesn’t like those as well, as she feels very much the same about rights and restrictions. She never was asked if she want to grant access to the location service by the PWA, still there was a map which showed her location exactly. Maybe we can talk again as soon as the are controllable, monitorable and restrictable via native means of the host operating system.
