ES2020 is a showstopper for some older browsers e.g. all IOS 12 devices (original iPad air in my case). Safari chokes on optional chaining (?.)

ES6 compile was tested in coder/vscode#23, but then removed again in #d4f09b4.
Any plans to reinstate ES6?

For other people on ios 12, the latest code-server still on ES6 (before microsoft bumped vscode to ES2020) is code-server@3.10.2