The way to go, IMO, is having Android emulation on your device for backwards compatibility.

SailfishOS has this, and doesn't do tracking.

PureOS and Purism One implement some FOSS techniques and rebrand them. I believe Nextcloud does this as well. Not sure why projects don't clearly mention what they're based upon, especially when its a lot like original.

PureOS is trying to use desktop apps instead and fit them to the phone screen ("convergence"). I think it is a viable strategy.

The thing is, there aren't any desktop apps—much less Linux desktop apps—for the types of things I need to do on my phone. On an Android phone, I can buy train tickets (NJTransit), deposit checks (Chase), and have telemedecine appointments with my doctor (MyChart).

I don't know if all of these would work in e.foundation, but presumably at least some would run.

> I don't know if all of these would work in e.foundation, but presumably at least some would run.

Custom AOSP apps can be supported via Anbox on upstream linux.

This may indeed be a problem. Perhaps one can use webapps for some of those use cases.

Unfortunately, I chose all of those examples explicitly because they can't be done on the web—they can't be done on a desktop device at all! :(

The telemedecine app is a big one I think about. I don't know what I would have done if I hadn't had a modern iOS or Android device when the pandemic hit in March, and my doctor appointments suddenly moved to this remote system.