Publishing everywhere at once is the whole point of a scheduler. Publishing the identical thing everywhere at once is how people can tell.
What differs between networks
- Instagram — the caption is read after the image. It can start slowly.
- TikTok — the text competes with the video. Short, or ignored.
- Telegram — no algorithm to please, so links work and length is fine.
- Facebook — links are first-class here, unlike Instagram.
- Threads — conversational; a statement invites replies more than a broadcast does.
The cheap adjustments
You do not need five drafts. Most of the gain comes from three habits: move the link out of the Instagram caption where it does nothing, cut the TikTok text to one line, and let the Telegram version say the extra sentence the others have no room for.
Hashtags are not universal either
Instagram still routes discovery through them. TikTok mostly does not. Telegram has no use for them at all — a wall of hashtags in a channel post just looks like it was pasted from somewhere else, because it was.
Cross-posting should save you the tedious part, not flatten the part that made the post worth reading.