I've submitted many benchmarks over the years for new jira and confluence UI "upgrades". I've received responses to the tune of, "our developers don't see that behavior issue on Windows" even though the test systems I used were Linux based and clearly stated as such. Speaking frankly, the new jira ui is fucking shit and makes my job slower due to the fact that pertinent information is obscured and only clearly displayed when I click "use old interface". This means that I must first wait for the whole page to render, click a link, and wait for the entire page to redirect to the old UI and render again. Multiply this for every single ticket I have to open and you can see the minutes tick off the clock.