I think that copyright should be abolished. But this does not mean you can't make money off software. For example, game studios could still charge for online play on their servers (an ongoing service), even if they can't legally prevent people from sharing copies of the game files, in this model. Similarly, theaters could still charge for movies, but what they would be selling is not a "right to see the movie" per se but the theater experience.
It may be hard to imagine, I don't think things would be massively different overall.
If the game is reasonably priced, people may still buy it out of convenience. For example, I'd rather pay $5 for a single player game on Steam and get out-of-the-box support for Linux through Proton than download a possibly malware-ridden copy in the high seas and then spent time figuring out how to run it. It's the same reason people still buy hard copies when every conceivable book is on Anna's Archive.
You expect every artist, actor, painter, and programmer to make zero $ from anything they create?