The data being publicized isn’t enough to call it open source, if someone decided to create a foss app that copies over new records from the ProtonDB database every night for example, you would still have a diverging dataset if you allow people to insert new records in the new app, and the ProtonDB owners could just decide to not export that data any longer whenever they want.
That could also be true if it were open source, but I’d say it’s much more likely to happen when the main parts of it are proprietary.
You also can’t change the data being Steam specific when the app is closed source and not accepting contributions, a foss app could become as broad or as specific as the community needs it to be.
The data being publicized isn’t enough to call it open source, if someone decided to create a foss app that copies over new records from the ProtonDB database every night for example, you would still have a diverging dataset if you allow people to insert new records in the new app, and the ProtonDB owners could just decide to not export that data any longer whenever they want.
That could also be true if it were open source, but I’d say it’s much more likely to happen when the main parts of it are proprietary.
You also can’t change the data being Steam specific when the app is closed source and not accepting contributions, a foss app could become as broad or as specific as the community needs it to be.