This is a request for the WebKit position on the top-level await JS proposal, which has been at Stage 3 in TC39 since June, 2019. Chrome is planning to ship it soon, likely in 88.
(Interestingly, Node has flipped on the feature flag in V8 for top-level await by default, so it is already shipping for the Node ecosystem: https://github.com/nodejs/node/pull/34558)