The problem with Libre5/Purism is apps.

A lot of the secure applications I use have a linux app of some sort (DEB, AppImage, Docker) but I fail to see how any of that is going to work on a phone.

I certainly don't see how a docker container would be good for battery life on a phone either

ProtonMail - for example - on Linux, requires a bridge application in order to talk to a IMAP capable email client.

Etesync requires a bridge in the form of a docker image.

Wire has an AppImage that I'm certain won't work well on a mobile screen. Signal has a DEB for Debian based environments and I doubt that'll play nice on mobile too.

The only real way to do a Libre phone is for me to invest entirely in the Libre ecosystem for mail, chat, VPN, everything.

if you've spent time moving your stuff into more secure and diverse sets of applications and services, and what's more - convincing friends and family to communicate with you over those very things, you'll have to migrate once more in order to use this phone.

I would bet money that Firefox doesn't even work on it in a mobile/phone-mode. You'll have to use their stock browser which will probably be based on Epiphany.

FWIW docker apps are just regular processes with some additional data structures on the kernel side. If the process(es) in the container aren't scheduled on a CPU (e.g., blocked or sleeping), the app isn't taking any more resources than any other process(es).

Frankly, a container-based app model sounds kinda nice!

even if it's good on battery, managing it on a phone sounds awful though.

I'd imagine that it could be wrapped up as well as .apks now, so you just see and manage a single icon representing the 'app'.

So much this. Without a ride share app (and a few others) I just can't see going to Librem 5 as much as I would like to.

For Uber, there's https://m.uber.com, works fine on any browser.

My understanding is that you can run Android apps in Linux, but I've never tried it.

It's a shame the Copperhead OS died.

It still reports your movements to your cell provider. Get rid of cell phones if you're worried about privacy.

That is like saying that 'unless its 100% perfect, I may as well send everything to Google and the ad-verse'

People can't simply get rid of their cell phones. At minimum, I need one for work.

If you care about protecting something, leaving one known-exploited exploitable backdoor open is practically as bad as leaving 100 open. "Closing all known backdoors" is a rational compromise. "Closing more backdoors known others are open" is an irrational feelgood measure.