Another thing worth remembering is that corporations are not required to keep download links for digital games you have purchased, especially when the links are associated with hardware that is no longer manufactured.
See how Nintendo states in no uncertain terms that the service where it makes its digital games available for download is not for life, and that the service may be discontinued as soon as Nintendo deems it convenient.
This is particularly relevant in the case of new consoles because many physical games are actually digital (I estimate that this will be the case for 80% of physical Switch 2 games).