Going through this, I was introduced to <= being converted to a ligature which immediately ruled it as a nope for me. No monkey business with the characters of my code thank you very much.
I like most ligatures, I wish I could selectively turn off just this one.
I don't like them as well. On this site, you can disable them with the checkbox on the top-right
That is usually configurable at the terminal level- for example, both wezterm and ghostty have available configs to control this behavior.