Digital is not the problem. Lack of true ownership is the problem. GoG is DRM free. Steam isn’t great on this, but it’s better than other alternatives for now. Sailing the high seas is the best option in many cases.

It’s not all or nothing, you can take small steps to stop supporting the worst offenses. First step, don’t use any game streaming services where you just subscribe to a rolling catalogue each month/year. PlayStation Plus and Xbox Game Pass are examples of this.

Nintendo is awful too, their games should be ripped from physical media if possible and emulated, or otherwise aquired on the seven seas and emulated. It’s a great way to play their games without supporting their evil practices.

Support FOSS games and FOSS-friendly companies. Valve is a good example. Although not perfect by any means, they have proven to be far friendlier to FOSS apps, games, and platforms than most other companies. If you have to get DRM-locked games, get them through Steam. At least they have offline mode and allow full access to all your game files so you can save them to a separate location for archives/backups.

It starts with small things, but if lots of people start doing this, it will have a noticable effect.