Edge has had side tabs (aka Vertical Tabs) for years now. I don't personally see a single reason to use Chrome over Edge. And I spend most of my time in MacOS.

I doubt many on HN actually use Chrome. Instead preferring Firefox or one of the many Chromium browsers (Brave, Arc etc).

I agree that there isn't a reason to use Chrome when Chromium exists, although which Chromium flavour and whether to use a different engine entirely, is the question.