Here's a Saas that actually makes money written fully in F#

https://3dpack.ing

Here's a rust ray tracer compiled to web assembly written in F#

https://ncave.github.io/fable-raytracer/

source: https://github.com/ncave/fable-raytracer?tab=readme-ov-file

The navbar takes up half my screen on an iPhone 13 mini :/