https://www.chromestatus.com/features#milestone%3E66%20AND%20milestone%3C%3D75 https://www.chromestatus.com/features#milestone%3E66%20AND%2... says that you are

https://www.chromestatus.com/features#milestone%3E66%20AND%20milestone%3C%3D75 https://www.chromestatus.com/features#milestone%3E66%20AND%2... says that you are missing out on 181 features, most of which are either new or spec improvements (nested web workers, spec-compliant border-radius). https://v8.dev/blog https://v8.dev/blog suggests that you are missing some pretty decent performance and memory improvements on the JS side, along with BigInt. So: 1. Probably not 2. Yes 3. Not sure