I mean, you should always check your backups and make 2 for good measure, but supposedly some of these newer ones are made for archival and claim between 10-100 years. Never trust such claims without verification but if true could be the best thing for archival besides punching bits in stone.
What procedures do you take to save and archive your games?
For example; GOG games - what happens if they were to shutdown their busieness. How would you archive these games if you had to?