I think the proton he refers to is the proton compatibility layer developed by valve.
But I personally haven’t switched to protonmail because they require Google to work on Android, which is surprising for a privacy company. On the other hand, Megasync also requires Google to work.
Tutanota don’t, but I cannot use them in thunderbird.
If you want to switch anyway, why not graphene/calyxos with Ubuntu/mint/pop/fedora? They work on your current device, and much more private than iOS + macOS
I think graphene should be relatively painless, especially with sandboxed Google play. The only thing don’t work is probably auto and pay. Calyxos is kind of the same story.
Linux distro has been working really well for me (I switched to windows from Linux at the end of college, and switch back to Linux again last year). The only thing that doesn’t work is office and other industrial software. If you don’t use Microsoft office extensively, then liberal office is a okay replacement. Only office is also very solid, but it is Russian software with few outside developers, so many people don’t really trust it.
Political jargon is confusing. But I think this case they refer to economical right-wing, who typically support deregulation of market.
I think calling “modern left” “liberal” is kind of confusing, since most modern left support social freedom and economical control, which is not really “liberal”. But that is the terms we stuck with.
Regardless, we already have electricity, self-driving vehicles that barely kills any person, it is called a tram, and it cost 7 bucks to commute. Cheaper than most car insurance.
Maybe instead of begging billionaires to come up with things that are not much worse (just slightly worse), we probably should just build more tram?
Besides /e/ os, I would also recommend graphene and calyxos.
Calyxos works similar to /e/os in that it uses microg to get things working, but calyxos is more up-to-date and secure.
Graphene os uses sandboxed Google play, which sounds bad, but the play services is confined to its sandbox, basically graphene os will simply feed it garbage telemetry unless it is absolutely necessary for the system to function.
/e/ os supports more devices (not just pixel like the other two), have their own SSO cloud service based on Nextcloud, and they support device that is outside of the support period of manufacturer (this also hurts security, as firmware cannot be updated without the OEM supporting the phone). But there is always a trade-off between security and longevity, given that most OEM only support a phone for couple of years now.