Especially considering that Node has exactly zero interest in compatibility with the web (search for "node atob" if you don't believe me), whereas Deno does, I think Deno should be listed.
Yet Opera still gets a column, despite how no one should be using it under any circumstance.
Yeah, Opera gets grandfathered in from the days when the dominant browsers were IE, Firefox and Opera (later joined by Safari and later still by Chrome). It's hard to see them getting listed based on modern market share. Obviously it's a bit harder to tell from e.g. user agent statistics when Chrome, Edge, Brave, Opera, Vivaldi etc. are all basically Chrome, but I would expect Brave to have more users than Opera at this point. And if Brave doesn't qualify because they don't have their own browser engine, well neither does Opera any more.