IMO translation is one of those things like speech recognition that ideally should have always have been local (for obvious privacy reasons), but the processing and data just wasn’t there yet when Google Translate and similar services launched.
But it’s true: like Opera did a few years ago, Microsoft is dropping not only the old Internet Explorer engine, but the newer Edge engine, and will be building Edge on Chromium going forward. That means Edge, Chrome, Opera and Safari are all built on the same codebase. (Chromium split from Apple’s WebKit a while back, but they still have a lot in common.)
I think I may want to finally shut down or retool that old Alternative Browser Alliance site I ran during the Second Browser War. The last time I made a significant update to it, Chrome was the new upstart.