Flatpak for the final Linux version of edge is a necessity.

nycnikato  Welcome to the forum nycnikato.  I agree with you.  I install a Flatpak (rather than a distro-specific package) whenever I am adding software, if a Flatpak exists. 

However, we've discussed this several times in the forum, and Microsoft seems to have no intention of wrapping Edge-Linux in a Flatpak, however little sense that makes.  I'm not quite sure why, but I think that it has to do with Microsoft's focus on business/enterprise clients and developers rather than on Linux desktop users.  Edge-Linux Stable has yet to be released into the consumer channel, although it is available in the business channel.

A community-developed Flatpak is under development and I've been using it on Solus OS 4.3 Budgie (see Edge-Linux Flatpak Beta - Unofficial - Microsoft Tech Community) but that project is temporarily on hold, pending release of Chrome into the Flathub Stable repository  (see https://github.com/flathub/com.microsoft.Edge/issues/88) for further developments on that project.

We started raising Edge-Linux on this forum in April 2019.  After a lot of hounding and happy talk, Microsoft released a Dev version a year ago, and a Beta version in May.  Stable is now released (see Edge-Linux Stable - Microsoft Tech Community), but only in the business channel and as a Windows Server related download.  That's absurd, but the whole history of Edge-Linux has been absurd, in my opinion.