Probably in the long run the only way to go will be to own/carry two devices. A long supported phone with stock firmware and apps you are "forced" to use to interface with the world around you, and a second Linux portable machine where you have your freedom.
I've been doing this for years already, except I split it further to three devices:
1) an old iPhone with 0 personal data on it and in no way linked to my identity, which is used for completely untrustable commercial apps, and rarely even leaves the house.
2) a LineageOS Android which is my daily smartphone for things like camera and GPS, running almost exclusively open source apps, except for unavoidables like WhatsApp which are run in an separate profile
3) a GPD Micro PC running Void Linux, which is roughly the same size as the phone and a true swiss army knife. Its purpose is to reliably do what I want, when I want it. No systemd, for it does not spark joy. It is used for web browsing, note taking, light productivity, and playing movies on the TVs of friends who have overinvested in streaming and dongles only to find that $CHOSEN_MOVIE is not on any of their services.
I am not entirely happy with this state of affairs - too many devices, and still not enough siloing of closed apps like WhatsApp.
You won’t be able to do much with the second. Web sites will force login with google, etc. and only work for attested browsers.
This is what I expressed considering, in another recent thread. Phone does phone things and "necessary" apps. Otherwise, it's a hotspot for the "unhindered" device.
I'd enjoy suggestions as to suitable unhindered devices.
P.S. I just hope we can continue to access / create unhindered devices -- and programs/apps (cough Manifest v3 cough).
>> Probably in the long run the only way to go will be to own/carry two devices.
Been doing this for a while. I have a smaller Samsung S22 for the apps I absolutely need that won't run on my Graphene phone. The majority of my day-to-day stuff is handled on my older phone running Graphene.
Been tinkering with Ubuntu Touch, but AFAIK they haven't figured out how to solve the issues with VoLTE yet here in the US but its on my radar to try and make the switch soon.
No, it's not "long supported" phone fallacy.
Google and by extension banks, are claiming that the phone on, Android 9, without security updates AT ALL since 2009 is perfectly safe and secure to use.
Meanwhile, really well locked OS, hardened so well some of the improvements were later picked up upstream (both by Google and Apple), running _the_ latest AOSP version and releasing new security updates within hours is not considered safe and secure, despite assuring full chain of trust (including locked bootloader, verified boot, etc).
This is what Play Integrity does.
Of course Android supports better scheme, hardware attestation, but od course Google enforces their iron grip on the ecosystem, and instead uses the outdated, flaved system that certifies only the devices with preinstalled Google services running in the privileged mode. Snooping on everything you do and have.
Thats the reason.