Inspired by the Ubuntu Online Tour project created by Canonical a few years ago, Ubuntu Online 21.10 aims to give those with very limited resources the option to try the latest Ubuntu Desktop release in a web browser.
Ubuntu Online works both online and offline, but for the best experience, the files need to be hosted online, on a web server. This is great if you want, for example, to migrate a bunch of computers to Ubuntu/Linux but you want your users to see what the fuss is all about with an online demo. Learn more about this online option here.