Command line web browsers for Linux systems without a window manager are limited in their ability to handle graphics, Java, and Flash. Browsers like Lynx are primarily text-based and do not display images or support advanced web features. Alternatives such as Links and w3m offer better rendering of web pages, including support for tables and frames, but still lack full graphical capabilities. Command line browsers cannot effectively support Java or Flash, which require a graphical environment. Users considering a minimal setup may opt for a lightweight window manager to run graphical browsers like Firefox, which can be configured without a full desktop environment. Discussions also mention the potential for innovative projects that could integrate command line browsing with graphical features, but practicality and demand for such solutions remain questionable. For users interested in gaming, command line alternatives exist, but they do not include Flash-based games. VirtualBox is highlighted as a versatile virtualization solution, allowing users to run different operating systems, but it is not directly related to web browsing.