volt-gui has been released in version 2.1.1.
The tool is a Vulkan implicit layer with a graphical interface that lets users adjust Vulkan behavior for games on Linux in a driver-agnostic way, covering things like texture filtering, the frame limiter, and display settings.
2.1.1 is a small follow-up to version 2.1.0 from a few days ago and ships two fixes: the mouse wheel is now ignored in dropdown menus, so scrolling no longer changes values by accident. The frame limiter also keeps its original timeline when a frame runs late instead of restarting the phase, which makes frametimes noticeably more even under load. Profiles from 2.0.x and 2.1.0 stay compatible.
Small Fix:
2.1.1 is a small fix over the 2.1.0 release, changing:
- The mouse wheel is now ignored on every dropdown to avoid undesired value changes when trying to scroll. Just a small QoL change :). #64, thx @derickso
- The frame limiter now stays on its original timeline when a frame runs late, instead of restarting the phase and adding an extra interval on top. Frametimes should come out noticeably more even under load. thx profetorum for spotting it

Source: GitHub