While I'm not a hard core terminal emulator expert or tweaker, it was a bit of a learning curve to get into Ghostty after iTerm2. I hope this latest release makes it easier to edit the splits, haven't tested yet.
But the biggest thing that made me stay on Ghostty was that there's a freaking config file. With iTerm you had to export the profile and keybindings, and then import them on a new system which was clumsy, and easy to forget. Now ghostty.config is just one of my dotfiles, with a clear understandable git history, I love it.
Yup I switched to WezTerm from iTerm2 and being able to version control the settings is one of the biggest benefits (especially because WezTerm allows more complicated Lua scripts)