I had fallen for a fake telegram crypto account in the past. The owner created a lot of fake members in the group to the tune of over 100,000 plus members so I thought it was a real crypto account.
At some points they asked members to pay an amount to a certain Ethereum wallet before we would be able to withdraw our earnings, I paid but I didn't receive any payments. That was when I realized that I have been scammed.
So, to differentiate real telegram crypto account from fake is when it asked for payments to withdraw your earnings, it's likely to be fake.