Just keep in mind that a number of different Cloud storage companies have entered the business, then exited the business. Some went totally OUT OF BUSINESS!
And in the 35 years since personal computing started, a number of harddrive technologies have come and gone, in the march of progress. And the connection bus in the computer motherboard has changed at least 3 times (perhaps 4), and you cannot easily buy the interface card to plug into the current PC bus of modern PCs.
It takes time and work to migrate digital data, to keep it accessible in spite of technology evolution.
I lost data about 20 years ago when a company that may have been called "Z Drive" went out of business. It was free, though. I use AWS now, S3 and Glacier, and given it's a massively profitable $10B/year company I think they're a pretty safe bet. They're not the easiest to use though.
I remember IDE and SATA connectors for hard drives, what came before that?
No matter what media you use, you have to check it occasionally, do restore testing, and as media becomes old or obsolete you have to move your data. In cloud storage the provider does this for you.