How to create a business channel on Telegram? (Tutorial) Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. Concise “Hey degen, are you stressed? Just let it all out,” he wrote, along with a link to join the group. The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar.
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