While foot focuses on minimalism, Ghostty brings along a shit ton of features like support for Kitty's (
https://sw.kovidgoyal.net/kitty/) graphics protocol (in terminal images! -
https://sw.kovidgoyal.net/kitty/graphics-protocol/), advanced window management (windows, tabs, splits) and OpenGL pixelshaders (
https://catskull.net/fun-with-ghostty-shaders.html)
Given features it's more comparable to Kitty than foot IMO.