I've been using Alacritty for the last 4 years, it's kinda the opposite of this nonsense. It's written in Rust, it's super light weight, highly optimised, and uses hardware acceleration to render the terminal. It's top of the chart for every terminal performance benchmark conceived.

However, that lightness and fastness comes at a cost. There are some basic features they just won't add because they're outside the scope of the project. Eg, tabs ("just use a tiling wm and do your own tabs in the wm") or a scrollbar ("just use a shell with a scrolling screen buffer like Tmux"), or different coloured backgrounds for each opened window ("why would anyone ever want to do that?").

My holy grail terminal would be something like Alacritty, written in Rust, blisteringly fast and light weight, but with tabs, scrollbar, bookmarks, etc.

I find myself falling back to using Konsole a lot these days, it's got all the features I want, is fast enough, and already installed on every system I use Plasma on.