That's a pretty low bar. Yes, Apple at least gives lip service to security which other companies don't even bother to do, but Apple has had some pretty major security screwups lately (three in the last few weeks). You might be less worried about Apple than the competition, but you'd do well to be somewhat worried about them nonetheless.
What I'm about to write does not invalidate your statement and concern, but to me there's a huge gulf between a bug and a willfully-designed feature that explicitly follows a security anti-pattern.
- MAC address tracking (RTS packets thrwart MAC randomization[0], not immediately clear if WiFi is fully off[1])
- All-or-nothing access to photos on the phone (append-only for apps that request it)
Discord in particular is bad for the photo permission, as I don't trust China's Tencent with access to all the photos on my phone (which can include lots of frequent location information!), but pasting images doesn't work in the app.
I had assumed the "Photos" permission meant "permission to prompt this dialogue" and "permission to save to Camera Roll".
[0] https://arxiv.org/pdf/1703.02874v1.pdf [1] https://support.apple.com/en-us/HT208086
It's notable Discord was developed as an American startup, and it's not clear what Tencent's involvement is. Regardless, for me it's too much access for a chat app to have in exchange for the convenince of sharing a photo from my phone.
Why do I need to give snapchat access to all photos ever just to post from my camera roll?
If you want to try it out install the Wire messenger (if you make the account with a web browser you don't need to provide a phone number), and try to attach a photo but deny Photo library permissions. (Here's the buttons to press: https://imgur.com/a/gc5Iq). Other apps work this way on iOS 11 but this is the one that came to mind.
"To protect user privacy, an iOS app linked on or after iOS 10.0, and that accesses the user’s photo library, must statically declare the intent to do so."
[0] https://developer.apple.com/library/content/documentation/Ge...