Haven’t had a samsung phone since the note 3, but I remember having issues with unlocking the bootloader, I think you had to use some 3rd party tool because samsung provided no guide in their manual. With nexus and pixel phones it’s really easy so them I can definately recommend.

According to wireguard itself the kernel-module based backend is more efficient/faster than the userspace implementation, and to use that it still requires root.

Adaway of course, and wireguard via the proper kernel module.

I have actually never flown on a narrow body plane that had charging ports, so I wouldnt say “most flights”

Mostly caching I guess, so less cold starting of apps

https://purelymail.com/

Love it. Heard about it from HN some years ago and been using it since. The guy who runs it is super friendly and aswers mails quickly too. And yes, it’s super cheap, I’m using the “usage based” pricing or whatever it’s called.

msmtp, I’m using purelymail for all my emails.

With LineageOS + microg I have a cheap phone that performs really well and the battery lasts for multiple days. Had a jailbroken iphone before switching to Android but have never even thougt about going back.

I think it depends heavily on how much storage you’re allocating, if you allow uploading media that is. From what I’ve understood most of the bottlenecks are in DB operations so CPU and memory definately play a role.