Stable Version

HotCakeX "Unlike the previously leaked beta versions, this time the stable leaks come straight from Microsoft servers, so they are safe."

The so-called "Stable" version does come from Microsoft servers (as the article from the trade press that I linked to indicated) and it may well be "safe".

But I'll stick with what I said, if it is all the same to you:

"In the Open Source (e.g. FOSS) development world, "Stable" is a term used to define builds that are released to the general public for use (not testing) and are supported.

Obviously, that is not the case here -- the so-called "Stable" version has not been released by Microsoft and is not supported. The so-called "Stable" version of Edge Chromium is a leaked build, almost certainly of a version that was put on Microsoft servers in order to test delivery/upgrade mechanisms in-house. According to what I've read about it, the "Stable" version of Edge Chromium "replaces" Edge Classic, no doubt in the same way as the "Edge Replaces Edge" unintended release and boondoggle did."

The fact that the so-called "Stable" version on Microsoft servers is Version 77.0.235 (apparently, an earlier Dev version) and the released Dev version is Version 78.0.249.1 (Official build) dev (64-bit) lends credence to my suggestion that the so-called "Stable" version was put on Microsoft servers in order to test delivery/upgrade mechanisms in-house. The so-called "Stable" version is outdated and was clearly not intended for release, in any event.  It isn't a version that offers anything to anyone beyond Microsoft in-house staff.

Drew1903 "Tom, IMO, at this point in time, no matter the source, they are leaked, premature and absolutely NOT recommend, at all!"

I don't suggest otherwise, and never have suggested otherwise.  Leaked versions of Microsoft's (and other developer's) software in development are discovered all the time, and distribution/use of leaked versions is often illegal.  It is, in addition, often foolish, as is the case here.  What is gained by installing a weeks-old version of Edge Chromium, by definition less stable and less complete than officially released Canary, Dev and Beta versions available legally?

As I noted in the earlier comment, "Anyone who is installs the so-called "Stable" version is doing so at their own risk."

HotCakeX Drew1903   As far as I am concerned, enough said, at least by me.