Use Google Drive File Stream (now Google Drive for Desktop) to sync only the games you are currently playing. Mark specific WBFS files as "Available offline." This gives you the speed of local storage with the archiving power of the cloud.

The high-quality WBFS files ensure no "white screen" or "black screen" errors caused by bad rips or improper trimming.

If you search for "google drive wii wbfs exclusive" on Google, Reddit, or YouTube, you will encounter three distinct realities:

When you want to play a game from your cloud backup: