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No. The 24 hour window is a Meta rule and it applies to Instagram, Messenger and WhatsApp. Telegram has no equivalent: once someone has started a chat with your bot, you can message them later without a template or a fresh inbound message.
That makes Telegram the easiest channel for anything with a delay in it: reminders, multi-day onboarding, a nudge a week later. The same flow on Instagram needs the useful part compressed into the first exchange.
What Telegram does require is that the person started the chat with your bot, usually by tapping a link or sending a command. There is no way to message a Telegram user who has never interacted with your bot.
Other differences worth knowing when you port a flow across:
- Telegram supports keyword triggers on incoming messages, so your matching
logic carries over unchanged.
- There is no public reply concept, because there are no comments.
- Bots can be added to groups, which changes who sees what. Test that
separately before you rely on it.
If you are choosing where to run a sequence that spans days, and your audience is on both, Telegram will cost you less design work than Instagram.