specifically for working better with diffs, I can recommend tmux + lazygit with this keybinding for quickly opening a floating lazygit:

bind-key C-g display-popup -E -d "#{pane_current_path}" -xC -yC -w 80% -h 75% "lazygit"

not only does it allow you to see the diffs, but you can directly discard changes you don't want, stage, commit, etc.