When I press on some message to forward it, it shows me Random usernames of contacts I don't know. And it even shows some Mobile Numbers I don't know. For example, one number starts with +964 that's Iraq. I'm from Europe tho. These contacts and numbers are from all over the place.
Are these under "Contacts" or "last messages"? If they're under contacts, you likely have some other app that provides these dubious contacts. Might also want to check your contacts app if it contains dubious entries.
Wrong. I'm in two group chats. And they are not in any of them. Signal literally leaked 56 contacts to me. These are people from all over the world. I don't know anyone from Iraq or asia. I only use Signal for Real Life friends from my Country.
Yes, I did get it from the official source. And it only happens on Signal Desktop. Not on the Android version. I edited this into the original post, but the cross post didn't seem to have updated.