I understand some of it tbh. Not the cars. A car is one and done, you manufacture it and you don't NEED to spend much more after the fact to keep the happy new owner happy. There's no way servers cost as much to run as they want for their cloud services (e.g remote start via app, unlock via app, etc). Sure there are R&D costs and they're pretty big, but those usually end when a model comes out, so you can divide it by total cars sold to get how much it is per one car. Before Tesla, cars didn't really get software updates unless there were major issues.

But I'm starting to understand why the software industry adopted the service model. Having worked for multiple companies doing B2B SaaS... The customers just keep asking for new things. Does a meal planning app need to be a subscription service? Probably not. But anything that keeps on adding new features costs a lot of money. Software engineers aren't cheap.

Of course my view may be skewed because it's B2B, not software anyone would just download off an app store or website. At my different jobs we've had billion dollar companies come and say "we love what you're doing, we want to keep using it, but you have to do X, Y and Z or our workflow just won't work and we can't use it efficiently".

Also in the world of consumer facing software, nobody wants a big upfront payment, but people are more willing to stomach a small monthly subscription. We could do away with proprietary software altogether, but oftentimes what happens with open source software is that due to lack of funding, devs don't have enough time to work on things, and they lag behind proprietary offerings. Large software suites like Adobe Premiere are never "finished" and thus neither are the open source alternatives. But Adobe has a ton more engineering resources to throw at improving their product than most open source projects.

TL;DR: Software engineering is expensive. People working open source projects are often doing it in their spare time after the work that actually pays their bills. If you want free and open source software to be competitive to paid subscription software, you gotta set up recurring donations and convince other people to do the same. At least it'll be forkable, voluntary and democratic, unlike with proprietary software companies.