PenguinBurner was released in version v0.8.4.

PenguinBurner is a tool for managing and optimizing GPUs on Linux, focused on power management, undervolting, and performance tuning. It follows shortly after version v0.8.3.

New are a redesigned in-game overlay, NVIDIA hotspot temperature, DLSS 5 GPU timing via OptiScaler, and keyboard shortcuts for overlay controls.

• Redesigned in-game overlay with clearer text, customizable layout, sizing, position, background opacity, and presets. Thanks @Ernold11!
• NVIDIA hotspot temperature and separate graphs for present-call and displayed-frame timing, where supported.
• Improved latency reporting with Reflex driver measurements and a clearly labeled estimated fallback.
• DLSS 5 neural-rendering GPU timing through supported OptiScaler interfaces.
• Keyboard shortcuts for overlay controls, with easier setup on KDE and GNOME and fixes for pip user installations.
• Reduced overlay rendering overhead and fixed a Vulkan layer deadlock.
• More reliable Auto-UV verification: recheck conflicting Performance results and wait for Q2RTX to start rendering before verification begins.
• Fixed profile verification rejecting its own daemon job and preserved saved GPU bindings.
• Fixed hardware-service installation with older SELinux policies, preserved the desktop user during CLI elevation, and improved setup error reporting.
• The Game Library now opens sorted by recently played.

Source: GitHub