This would a great candidate for https://wails.io/. I've been building a lot of utility desktop apps and the static binary is around 9mb (uses the system webview).
I'm also eyeing wails for a couple of personal desktop apps that I want to build soon. I built toy app first towards the end of last year to try it out and I was impressed. It felt like a nice middle ground between Electron and Tauri for desktop apps using a web front-end. Looking forward to the release of v3!