Good question. I do not use the app, but when I just looked, the website did not have the search box and the left side bar's search box is not working. Oh, it does "search", but only the recommendations. If I enter a word, it just opens a game and not search results.
For browser the 1080 says little. Browsers use virutal screen size and adjust for operating system settings and most important the zoom level you set. It might be 100% or bigger or lower.