I use ghostty and native splits, however there is no way to move a pane to a new tab. Which you can do in tmux very easily. That's one thing I wish it could do.

While this doesn't address that issue you can move a tab to a new window (session) as well as merge. I do wish this feature existed, but I use it so rarely that honestly I don't notice. Rarely are more than one pane essential in a given tab, so usually I solve this by cleanup. But yeah, I will acknowledge that limit.