So your main issue is they're confusing vegetarian with pescetarian for no reason?
I'm vegetarian too, that happens basically everywhere (at least France, Belgium, Denmark, Poland). Some places they confuse it with veganism, but that's obviously less of an issue.
Historic definitions only matter in historic text.
The currently popular definitions are "attraction to your own and different genders" and "attraction regardless of gender".
It'd be good for Android to be mostly its base, the Android Open Source Project. Over the years Google put more and more things in the proprietary part of Android (Google Play Services) instead of AOSP.
Depends on who takes over whether that gets better of course. If they also put too much in Play Services, or ask the manufacturers for a high fee, yes it's possible we go back to more oem flavours.
Can you explain what you mean by offline-first?
Like if it's internet stuff that still works when offline, most e-mail clients would count. I use KMail but they're all pretty similar.