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Steam Frame and Steam Machine will be another good boost for Flatpaks and desktop Linux overall too
(www.gamingonlinux.com)
A community for everything relating to the GNU/Linux operating system (except the memes!)
Also, check out:
Original icon base courtesy of lewing@isc.tamu.edu and The GIMP
As another person said, having multiple versions of dependencies is part of the draw. Also, Flatpak does allow for deduplication of dependencies when multiple applications require the same version.