For the kinds of games where DRM free matters, where they don't have a prominent online/multiplayer side or the equivalent of playing the game 'from the disc', is the console subscription really an issue? I don't have a console myself, but from when I've looked into it there's a bunch of mainly free to play games where that subscription isn't needed as both the publisher and Sony/MS get their money from purchases.
1. An Xbox Live/Playstation Plus is required for any online multiplayer functionality.
2. DRM Free still matters with multiplayer games. Minecraft is a perfect example, where you can run your own client/server and play with people, and there really doesn't need to be any other middle man involved.
3. With how good home internet is now, it's not a big deal to host game servers from your home on an old computer. Running big central servers really only matters if you care about matchmaking or games with a lot of simultaneous players.
MS would love to kill off custom Minecraft clients and servers, and have attempted to turn minecraft into a subscription service but they risk losing their entire community if they go too DRM heavy so Minecraft Java edition has remained very open
