The question is also privacy against whom.
In Signal and Whatsapp you have the problem that your Phone number is known to anyone in a group chat, which is suuuuuuuper shit when you are a political activist because your phone number means that any police has your location and in germany you cannot even buy a phone number without your state ID.
So from a privacy standpoint Telegram is much much better then Signal, as long as Telegram does not work with the Authorities of your location.
The same is true if you date online, you absolutely do not want that these ppl get your phone number because this is much easier to abuse then some telegram username.
Also the privacy settings for telegram are _really_ good, you can decide who, even down to single persons, can see your pfp pic or a "public pfp" you can set - the same with online status etc.
I just whish telegram would encrypt messages by default end to end, really a shame that they do not, otherwise it would be the best thing out there.
@m @waldschnecke
> In Signal and Whatsapp you have the problem that your Phone number is known to anyone in a group chat
Not in Signal anymore. They finally solved it:
https://signal.org/blog/phone-number-privacy-usernames/
But agreed on privacy controls etc.