If you're concerned about your chats and data, don't be! Telegram stores all your conversations and files on their servers, so even if you delete the app, your data remains intact. You can always access it again by re-downloading the app and logging back in.
But here's the thing, if you delete your account entirely, that's a different story. You'll lose all your chats, groups, and channels, and there's no going back! So, be careful what you wish for, right?
