Yup, this exact timeline of degraded experience on Facebook led me to disable my account. I haven't reactivated it in over a year, and I'm happier for it.
What kills me is I recall the mobile browser experience being better in the 2012 era than 2021. We've moved from alright 3G to widely available 4G with populous areas having 5G, and with home internet connections generally being much faster. The same website code could provide a much better experience simply from more bandwidth availability. Instead we've regressed because everything needs an app now.
Some forum software allows the owners to create an app then prompts you to install their app. Not sure which it is, but it's super annoying.
Over the last couple, reddit has significantly limited their mobile website utility, requiring login (like Instagram) and nagging you to download the app.
Marketing metrics seem to have overcome usability in terms of relative importance. It's really frustrating to see what the movie computing environment has become.