Comment by Deukhoofd
Yeah, I tried Tauri for a bit, and this was the primary issue I quickly found as well. Generally you use these kinds of tools to be able to easily do cross-platform UI. With Tauri every single OS you target will use a different underlying web browser engine, which means you'll still be running into many platform specific issues.
Especially webkitGTK is just a drama, it's barely able to do layout for basic tables in a performant manner.
In my experience in the current implementation Tauri is not ready for production. I've seen some preliminary work by the Tauri devs to investigate if they could use some standardized webview engine, but that's still very far away.
Only way to compete electron is by building a webtech compatible UI engine that is lighter weight, more secure, higher performance, and renders well.
That is big engineering task and not something a small group of devs can do.
Only thing that could comes close is building electron and chromium compatible api on top of Zed team's UI engine.