It does support it, it’s just slower than JS. WA is faster in other aspects though, so frameworks that compile to WA (like the Rust framework Leptos) still end up being faster than a lot of JS ones.

You can also copy paste by manually copying text by hand, would call that a valid alternative to Ctrl-C/V?

I don’t understand the need for Ctrl-C/V, when manually copying the text exists. I know it’s snarky, but that’s the level of difference we’re talking about here. Or imagine, to delete a line, someone Right Arrows 50 times, then backspaces 50 times, instead of using the shortcut.