This is the closest comment to my reaction. I love iTerm2. I am extremely picky about customizing my tools and I haven’t hit a single road block.
It’s on a visibility toggle with one key, nice margins on all sides, tmux, spaceship prompt, a color scheme that matches my IDE, I can hide the title bar if I like. It’s basically perfect. I don’t need error messages with rounded borders.
I am a long-time `iterm2` user, it's really nice and is actively maintained by smart people: it's always getting better. So I won't exactly try to steer you away from it, it's good.
With that said I strongly encourage you to check out WezTerm. It's exactly that GNU/Rust "chip-on-the-shoulder" type project where someone was just like: "I don't care how much work it is".
It's fast, stable, and reliable on Linux and mac OS, it has a much more user-friendly configuration experience than e.g. Alacritty (which is also cool and I used for awhile). It supports tabs and copy/paste and all the stuff you'd expect. And it has GPU-accelerated ligatures. Every other terminal emulator project just gave up on that.
And it's such a cool example of the phenomenon I'm alluding to: I tried it awhile back and it was like "My First Rust Project", but the author kept at it and at it and became seriously formidable in the process. I don't use software because I like the maintainer's attitude, but it's pleasant when the best software has a maintainer who I admire.
It’s on a visibility toggle with one key, nice margins on all sides, tmux, spaceship prompt, a color scheme that matches my IDE, I can hide the title bar if I like. It’s basically perfect. I don’t need error messages with rounded borders.