I sometimes use and like alacritty, and also have kitty fully set up for my use, but have mainly ended up going back to iTerm.
With a slow motion camera I can prove that alacritty is faster / more responsive, and I think I can feel it, but it also has slightly more bugs and uses massively more battery. One funny issue is that I can’t screen share alacritty in zoom.
I use tmux/neovim so I’m in the terminal 100% of the time I’m working.