In the past I have found myself working with laptops with few resources and small screen (eeepc). Every pixel gained was a big win, and finding equivalent lightweight, high-performance applications could make all the difference. Eventually I found the optimal solution with i3 as windows manager and alacritty was the best terminal to use together (and zsh). Since then even though I have no real need I have continued to use this approach. And in the end being careful about pc resource consumption is also an ethical choice, if the pc consumes less power it is a gain for the environment.

In my case it's resource consumption, efficiency the impact with the windows manager I use, how much is keyboard controllable. It seems strange to me that a linux user uses the default applications. The beauty of linux is the huge variety and the ability to customize. If you use allova ready-made things, a mac or windows is fine too

I see is a alacritty fork. what does it have more?

what you say is completely off topic