On June 7, Perekopsky met with Brazilian President Jair Bolsonaro, an avid user of the platform. According to the firm's VP, the main subject of the meeting was "freedom of expression." Telegram Android app: Open the chats list, click the menu icon and select “New Channel.” 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. 5Telegram Channel avatar size/dimensions Your posting frequency depends on the topic of your channel. If you have a news channel, it’s OK to publish new content every day (or even every hour). For other industries, stick with 2-3 large posts a week.
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