×About Tlgr.org
Please note: Tlgr.org is an unofficial version (hereinafter the 'mirror') of the site Telegram.org. This mirror was created to be able to access the official website Telegram.org at any time while it is unavailable due to any local network problems. If the official website Telegram.org is available, we recommend using only that. The transmitted information is not stored on the mirror side and is provided on an as-is basis.
OK
переобулся
общие группы
Neem niet op, Telegram verwerkt alles automatisch.
Als je dit niet wilt, kun je liever een privékanaal aanmaken.
In the second sentence I've added "liever" (preferably), which can be used as an alternative for "instead" (the literal translation of instead is "in plaats van", but I think "liever" sets a more appropriate tone).
ongelezen means unread