I use Fennec. Vivaldi's a good browser if you want Chromium. I haven't used it much, but Cromite is a decent choice too
AzureRT
This is gonna be a foolish and stupid question but how did you check how much data was being collected?
What's wrong with Element?
Edit: I just saw your response to someone else with a similar question, myb.
How easy was it to intall Graphene? Honestly, the whole unlocking bootloader, flash a new OS thing sounds confusing.
Good search engine with no ads.
I use OpenBoard. It's good, but my only problem is the lack of images being copied to the clipboard unlike my default keyboard.
You can, but I don't know how/when they ask for it. When I changed my email on my main a couple months ago they asked for a number. When I changed the email of an alt recently they didn't, which was weird.
Fuckin' Reddit.
I like Skiff but I sent two emails with my Skiff email to my brother, but they never appeared to his email (checked spam and searched too). Only reached to him when I used my gmail address.
I got my mom to switch. Well, made her to. Sent her a link to install it and just said "It's like Whatsapp, but no Facebook" along with "Keep Whatsapp for your old contacts".
Discord is bad (in general really) for privacy