If companies could, they would just send your browser a binary blob. From a business point of view, exposing your inner workings / modules is a no-go. Same for local apps using Electron, there's a (perceived at least) business need to obfuscate the code into a big ball of mud that is continuously changing with every build so external patches cannot be applied, e.g. Slack doesn't want you to have the ability to read or modify your local Electron client.