Simple answer to the question so far as I can see: in order to connect with someone, you have to video conference with them and show them a code. So the anonymity is only as anonymous as the video conference you use to do that. All of the benefits it claims are merely an illusion.
Instagram Lite is an okay alternative to the bigger, main client and since it’s official, it won’t get you banned. It’s not available in most markets, but sideloading from APKMirror works very well.
I’ve been a believer since Netscape 3 and am a happy user on my desktops, phone, and tablets. I struggle to imagine a world without extensions on mobile. Firefox is also my password manager of choice, offering way more usability than any of the other options with at least the same level of security (AES-256 and 10,000 rounds of PBKDF2). I hope to never have to consider a move and don’t foresee ZDNet’s predicted death. 2.2% still apparently equates to almost $600M of revenue. That’ll keep the train running for quite a while. Still, I wish Mozilla listened better. Getting rid of XUL extensions was a self-inflected gunshot wound and not getting the full extension list to mobile for 2 years was just asking people to leave.
Thereby surrendering your anonymity and negating any reason to use the app over mainstream alternatives.