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by NekkoDroid 71 days ago
IIRC they aren't based on Flatpak, they existed even before Flatpak gained any traction. I actually do think Steam changed a few things in pressure-vessel to be more similar to Flatpak, but they mostly evolved independently.

The main reason I think they are pouring money into Flatpak is because that is the main way to install applications on SteamOS (that aren't games shipped via Steam).