If Microsoft has yet to ship a stable version of its new Chromium-based Edge browser, it looks like the company is ready to hide its existing Edge UWP browser on Windows 10 PCs where the new Edge Insider is installed. As noted by Windows Latest today, this change is currently live in the Windows 10 build 18362.266 that just shipped to Release Preview insiders.
If you’re already running this build ahead of its public release, you may notice that Microsoft Edge UWP will disappear from the Start Menu when you have Edge Canary or Edge Dev installed on your machine. The UWP version of Edge won’t show up anymore in Windows Search either, though the app remains present on users’ machines.
Microsoft hasn't shared yet when it plans to fully replace its EdgeHTML browser engine on Windows 10 with the Chromium-based version powering the new Edge. Anyway, if you've already using Edge Insider builds on your PC (which now include the new IE compatibility mode), you probably don't need Edge UWP anymore. Having different versions of Edge showing up in the Start Menu or Windows Search can be slightly confusing, so this is probably a change for the better.
The Windows 10 build 18362.266 which includes these subtle Edge changes should be available soon in the Production ring, In the meantime, all Windows Insiders including those on the Release Preview ring should double check their Windows Update settings today, as it turns out that Microsoft accidently pushed an internal Windows 10 build to all Insiders without proper testing.