I don't have a keybinding to hide, but you could easily achieve that by inspecting the active window with `hs.window.focusedWindow()`/`hs.window.frontmostWindow()` and making the behavior conditional based on the application: https://www.hammerspoon.org/docs/hs.window.html#focusedWindo...
In WezTerm, you can control whether the terminal is always on top with the `ToggleAlwaysOnTop` action: https://wezfurlong.org/wezterm/config/lua/keyassignment/Togg...