I’d be a fan of a law that companies who drop support of their product would have to release code that lets 3rd parties or users themselves offer alternative support. If you want to fully abandon a product opensource it. If you’re a big company that doesn’t want to do that release a feature for users to self host before you cut ties. I know it’s not a simple thing to do in the current world but if laws mandated it then tech would have no choice but to adapt.