Mostly Tauri claimed their main advantage was smaller app sizes since it's using the native WebView. What they didn't say is how a bottomless pit it is to try standardizing rendering on X different webviews, multiplied by X different webview versions (outdated, not updated systems) ; so now they have pivoted to shipping their own build-in browser ; Competition in open-space is okay but it shouldn't be made by only pushing its perceived advantages while withholding the systemic disadvantages.