SerenityOS has been described as a nostalgic tribute to the user interfaces of the 1990s. Users appreciate its simplicity and efficiency, emphasizing the importance of good font rendering and a quick application launcher while expressing dissatisfaction with modern UIs filled with slow animations. Although users recognize SerenityOS's homage to the era, some point out that it mainly showcases the standardized aspects of 90s interfaces, neglecting the unique quirks of that time. Concerns have also been raised about the project's future after the loss of its founder, but active commit history suggests ongoing development. Users discuss their experiences and improvisations with similar themes in other Linux distros, questioning the practicality of using SerenityOS as a daily driver. Furthermore, some users speculate about SerenityOS integrating features from both original and inventive aspects of 90s design to become a more modernized platform.