You already don’t own your games. Or much of anything else really. You purchase a license to use the product.

At any time the people who sell you these products decide they don’t want to offer their products or services, if they want to abandon them altogether, if they want to brick your hardware and not accept responsibility, if they want to remove features, if they want to add new paywalls, they can do all of these things and see no repercussions.

The only thing you can do is wait until the game has demonstrated that it might be worth what they’re charging, buy a copy from a DRM-free store, then create a local/cloud backup.