Cookies are essentially an older way to store data for web pages. The browser knows to attach this information on every request to the website.

Where they got a bad rap is companies like Facebook, Twitter, ect. Started embedding them in the “like” buttons on pages passively tracking every website you went to, whether you were logged in or not. Gaining massive tracking of the whole Internet.

Once people started getting wind of this there was massive pushback against cookies and various legislation was for sites to have to tell you that the site uses cookies for various things and how they track your activities.

I just recently setup kopia to backup my next cloud data and have it sync to idrivee2 seems to be reasonable price for s3 compatible storage

The fact that json serializes easily to basic data structures simplifies code so much. Most use cases don’t need fully sematic data storage much of which you have to write the same amount of documentation about the data structures anyways. I’ll give XML one thing though, schemas are nice and easy, but high barrier to entry in json.