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.
I tried Wezterm and it’s not bad, but I had a bit of trouble configuring it and it seems a bit heavy to me. Recently, in order to use certain applications, I was forced to abandon alacritty and switch to kitty, and I must say I really like it. The tabs are not very useful to me since I use a tiling window manager and tmux, but it has a lot of interesting features and is really easy to configure. I didn’t remember it being so well done. Although alacritty seems to me to be the best due to its simplicity and minimalism. Just my humble opinion.