Is NexVid - Real-time Video Upscaler & Enhancer safe?

Upscales and enhances web and local videos in real time using browser-based GPU effects.

This extension applies Anime4K upscaling profiles, WebGL shaders, and image filters to videos in the browser. Users can adjust performance settings, combine effects, save and load presets, and use a built-in local video player. The extension description says processing is performed locally and notes occasional ads within the extension interface.