What’s the state of Unicode support in JavaScript regex in 2024?

I expect "I like to listen to Björk".matchAll(/w+/gu) to get me ["I", "like", "to", "listen", "to", "Björk"], but it gets me ["I", "like", "to", "listen", "to", "Bj", "rk"]. Using the ‘v’ flag, instead, is no different (and not supported in Node, it seems). Is this broken or am I doing it wrong? How do I make it work?