Sorry, that was only on desktop, on iOS and android there is no such feature yet.
For telegram you have an open issue on their tracker that you can vote for.
A quick search didn't really give me any results of iOS forks that allow disabling AI, so either none have it, or they don't mention it directly...
Sorry, that was only on the desktop version, on both iOS and android there isn't such option yet.
They have an open issue on their tracker that you can vote for.
Alternatively you can do as @yesterday@lemmy.ca mentioned and use Forkgram while they decide to implement the feature.
Settings > advanced > experimental settings > Hide AI button (The last option in the list at the time of this post)
Edit: Only for desktop
Vivaldi will disable it and make sure that even if google tries to remotelly enable it, it will remain disabled.
How about stoat? It's AGPL but doesn't seem to have the CLA clause.