I wonder why no terminal app implemented Z-axis scrollback like in Avalon, since they increasingly (e.g., Alacritty) boast GPU-based rendering it seems like it

I wonder why no terminal app implemented Z-axis scrollback like in Avalon, since they increasingly (e.g., Alacritty) boast GPU-based rendering it seems like it wouldn’t be such a resource hog but can look gorgeous. And practical, too. It would make going through multi-screen lengthy program output much more palatable. Part of the problem here is scrolling by arbitrary offsets, of course (imagine being able to just say “it’s N screens back at this point”, where each screen is an unchangeable recognizable landmark), and once that anti-feature is gone pushing screens back on Z becomes the logical next step, allowing for more spatial reasoning. — I use tmux, what’s the point? — Add a button to push a screen back on demand, a way to bookmark screens, and it would elevate multiplexer & TUI experience just as well.