It produces much smaller binaries My blog post on it -> https://dev.to/sendilkumarn/tiny-go-to-webassembly-5168

In the (reasonably simple) stuff we've been doing so far, TinyGo produced wasm files are 2-3% the size of mainline Go produced wasm files. eg:

https://justinclift.github.io/tinygo_canvas2/ (~19.5kB)

https://justinclift.github.io/tinygo-wasm-rotating-cube/ (WebGL, ~12kB)