It's only been about three weeks since Microsoft made its Chromium-based Edge browser generally available, even though many people still haven't seen the update on their machines. Still, you can get it if you want it. Either way, the browser is getting its first major update in the stable channel today, bringing it to Edge 80.
Most notably, the browser now natively supports ARM64 PCs, such as the Surface Pro X, Lenovo Yoga C630 WOS, Samsung Galaxy Book2, and so on. Previously, if you tried to install it on those PCs, you'd get the 32-bit Intel version, which ran in emulation. This caused some performance issues, and those issues could be significant depending on the device you're using.
Microsoft's decision to launch Edge without ARM64 support was questionable at the time, since the company actually announced the launch date just a day before the Surface Pro X hit the market. It seems to have worked out though, as few people have been automatically upgraded to the Chromium-based browser. Edge Legacy already supported ARM64, so users would have been upgrading from a native browser to an emulated one.
If you did install the 32-bit Intel browser and you're on an ARM64 machine, you'll automatically be moved to the native version. There's no additional work required.
Of course, Edge 80 is available in the stable channel for everyone now. That includes Windows 7, Windows 8.1, Windows 10, and even macOS.