Stop Signal from displaying names from your address book contacts and show only what people have set in their Signal profile
This basic bit of crucial security so people don’t accidentally dox their own friends in group chat is utterly missing from Signal, which purports to be a secure chat app.
- make signal not use system contacts
You can go to Android settings, to permissions, to the app and remove the Contacts permission specifically.
Restart your phone to actually get it to stop pulling in your contact name.