Confusion about using Quicken on Web

I have a windows computer at home, and I travel with a Linux Ubuntu computer. I thought that if I synced the windows to the quicken cloud, I could access my accounts with the browser on my linux. But all I get when I try use the browser is your home site trying to sell me more quicken products. How do I access and add info to my accounts via the web while traveling and using my linux computer. Then when I return home to my Windows 10 computer and my quicken software, how do I cause the new info in the cloud to be downloaded to update my home computer (windows) account info (and not the other way around)?