GOverlay 1.9.1 was released today, bringing several enhancements for Linux GPU users. The update integrates lsfg-vk 2.0 and MAKO into a dedicated Lossless Scaling tab, offering new frame generation capabilities. For upscaling, the OptiScaler and DLSS Enabler features see enhanced Streamline SDK deployment, now including native backup via bgmod. Users can also select between the latest FSR version or RDNA2 optimized 4.1.1b / 4.0.2c via a new FSR Version Selector. MangoHud integration has been improved with added toggles for individual metric graphs and a new frame_timing_detailed option. The developer noted, "Thanks to all the users that submit bug reports and help make it a better app." This release focuses on refining performance, frame generation, and monitoring tools for gaming and development on Linux.