https://devblogs.microsoft.com/dotnet/introducing-c-source-g...
The main goal is for them to be the .NET version of Java's annotation processors and thus allow many libraries to replace their reflection code with compile time code generation.
I followed the link to the F# suggestions and found
https://github.com/fsharp/fslang-suggestions/issues/864
It seems like there is interest but with a "let’s wait and see what happens with C#" kind of approach. I’ll admit it looks far off, but there appears to be interest.
I’m certainly not expecting them, and for my purposes F# provides more than enough anyway. I am nonetheless interested: why do you think they will never come to F#?
Until now, all the F# related tooling tends to be done by a mix of the tiny MS team and FOSS community, it is not the full steam rolling engine that C# and VB get.