It's always struct me as interesting that ladybird is built with C++. I like C++, and prefer it to languages like Rust, but it's not uncommon to see new OSS projects using weird languages and the newest tools. Lots of languages offer improvements in regards to threading models, development speed, or cross-platform support which we don't get in C++. I suppose their success is likely directly related to the fact they m…
It's also not clear what you're looking for in terms of cross-platform support. Some languages provide better standard library support for UI elements, but that's the part a browser will be implementing for itself regardless.