Navigation is a mechanism for automatically creating and organizing a catalog of posts for quick access to them through a navigation post.
If you publish interesting content that should not be lost in the depths of the channel feed, create streamwith active setting show in navigation. All posts published in this stream will be added to a special lightweight navigation Mini App page.

Publish a navigation post, it will appear with an inline button Navigation, will be automatically pinned, and subscribers will always have access to your posts.
Posts on the page will be sorted by stream. Unlike regular navigation posts, the Mini App page is not limited by the character limit, and does not require manually adding hyperlinks to posts.
The first sentence of the post is used as the title. If you wish, you can change the text, the post and stream icon, the stream name (the public name of the category, visible to subscribers), and you can disable the display of individual posts in the navigation.

You can add any old posts created without the bot to your navigation using the function Attach posts in the chat version of the bot: in the stream settings, activate the linking mode and send the bot posts from your channel, they will be added to the selected stream and will be displayed in the navigation.
☰ Menu>Streams>*stream name*>Link posts

Mini App opens with one click in 1-2 seconds for users of mobile and desktop Telegram clients. Users of web versions will need 2 clicks, but their share is consistently less than 5%, and those are mainly the admins of tg channels themselves.