With its tidy graphical user interface, GitLab seems somewhat clearer at first, which is why many users of the platform report that it’s easier and more intuitive to use. For example, issues in GitLab are not only displayed as a list, but they can also be organized and managed in a board view.
Another big advantage of GitLab over GitHub is that its user interface (UI) can be scaled and freely adjusted to the size of the screen, whereas GitHub is limited to a fixed size. As a result, GitLab is often a better alternative to GitHub for viewing on mobile devices.
Editing and creating code is a bit easier with GitLab because the tool offers an integrated development environment (IDE). By contrast, GitHub only has a minimalistic text editor.
However, to be fair, we should note that these differences are not very significant if you use the platforms on a desktop and integrate them into third-party editors or IDEs, since you won’t see much of the actual interface anyway. If you’ve never used either of these tools, both will require similar effort to learn.