Can’t say I’ve had huge issues with casting in general for coming up on a decade now.
I actually wrote MinimalGPT as a project for myself because I found using ChatGPT annoying for certain things.
It’s just a minimal chat client where you provide an OpenAI API key for GPT and you’re off to the races.
Conversations and all data (besides the messages you send to OpenAI) are stored locally to your browser.
https://minimalgpt.app, it’s also a PWA application so you can save it to your mobile Home Screen for a full app experience.
GitHub Repo with a fleshed out readme for more info.
While all of that is great and true it’s almost irrelevant because adding gif support doesn’t hamstring the privacy of the application.
SimpleX is newer, has arguably better privacy and already supports gif keyboards etc..
I use them both honestly, but I wouldn’t pretend missing some basic features is because of some higher privacy principle.