Honestly, the stock ROM on most phones is probably better than LineageOS. I would stick to that, maybe use the Universal Android Debloater to remove some of the crap and eventually get a Pixel with GrapheneOS.

This theory is really dumb and there's no real evidence. Everyone can say that something is a honeypot, I don't care about auch allegations as long as there's no proof.

Yes, but it's far better than LineageOS because it works with a locked bootloader and can make use of Android Verified Boot. LineageOS lacks this fundamental security feature.

Airplane mode exists because it is mandated by law that every handheld cellular device needs a reliable way of disabling the cellular modem to prevent interference with airplanes. When airplane mode is turned on, the cellular modem actually needs to be turned off. Otherwise, the device is not compliant with regulations and can't be sold. Obviously, this is not a 100% guarantee, but the chances that the cellular modem randomly turns on while in airplane mode are very slim. And the Wi-Fi switch isn't really useful, because GrapheneOS and even Stock Android use Wi-Fi MAC address randomization. On GrapheneOS you can also fully disable Wi-Fi scanning.

Second choice should be something like DivestOS. It's definitely not as good as GrapheneOS, but far better than Lineage.

That's why I recommend full disk encryption. If someone steals your hard drives, the data is inaccessible without your password.

No, but the guy publishes some great articles in regards to privacy and security. privsec.dev is another one I recommend.

It doesn't matter if you host it yourself. You should still have full disk encryption (LUKS on Linux) enabled on your server though.

Unfortunately, LineageOS is pretty insecure. Worse than stock Android. https://madaidans-insecurities.github.io/android.html#lineageos

Does Lineage actually have any advantages over Graphene?

I know, but if they add any weird shit to their apps, it won’t be accepted on F-Droid anyway. Also, most of the Fossify apps aren’t available on F-Droid right now. I can only find the gallery app at the moment. Once the Fossify forks of the Simple Mobile Apps I mentioned are available on F-Droid, I will edit my comment.

Quik is cool though, I used QKSMS before and I like it more than Simple SMS.

I know, but if they add any weird shit to their apps, it won't be accepted on F-Droid anyway. Also, most of the Fossify apps aren't available on F-Droid right now. I can only find the gallery app at the moment. Once the Fossify forks of the Simple Mobile Apps I mentioned are available on F-Droid, I will edit my comment.

I would add a few things. Thunder is another amazing Lemmy app. LibreTube is a great, private and open source YouTube client. Tuta (previously Tutanota) is another end to end encrypted email provider and an alternative to Proton Mail.