Sorry, my fault for not to mention about the intellectual property, i just try to make a discussion outweight the pros and cons.
An apk bundle is just a different publishing format - you still end up with an apk, which still installs the app.
An obb file is just a file of additional data
released along with the app it's used by, which includes things such as graphics, media files, or other large program assets. It just makes the apk file itself smaller - but what's installed into the phone (an apk file doesn't get installed, it contains the app that gets installed) ends up being
exactly the same.
The developer, once the app has been developed, can package it as a bundle, or as an apk plus an obb.
The end result in the phone is exactly the same thing - the apk plus the additional data. It has nothing to do with the size of what's on the phone. It
may change the amount of data you have to download for an update.
Or, the update may be released as an apk. That's up to the developer. Any app that's released on Play as an apk, but on some other site as a bundle plus an obb file, is being released as the apk plus malware. If the developer released the app as a bundle, Play would release it as a bundle. Google invented the format.
So it's not up to "the game players", it's up to the developers.
But the amount of space taken in the phone's storage is going to be
exactly the same in any of the 3 cases.