hi,
as far as i know, nothing has changed since you last posted.
https://forum.rclone.org/t/rclone-and-telegram/24023
support for youtube and telegram has been discussed a number of times in the forum,
https://forum.rclone.org/t/support-for-telegram/28142
https://forum.rclone.org/t/add-youtube-as-a-remote/30215