Atlassian products feel like raw database frontends. I feel like each screen in each Atlassian product is always exactly a database table, being presented to me as an auto-generated form. Might as well use SQL directly.
The truly impressive feat (of Jira in particular, but also all of Atlassian's products in general) is how incredibly slow they are. I assume each page somehow touches every single row of every single table in the database because I don't know what else it could be doing to make page loads take so long.
That really couldn't be further from the truth, especially in Jira. Jira keeps virtually every piece of interesting information in a custom field, including built-in fields like issue titles and points (known as system fields but effectively the same thing). Every view you see is the product of a zillion complicated joins across field definitions, field schemes, field values, field permissions and other bits and pieces.