I use Rider† daily to write F# and C# on my Mac. It works great, I have no issues with it. It even handles the .NET Framework 4.8 code‡ that I maintain without any issues thanks to Mono.

† And Neovim occasionally, but I mostly use it for Typescript or anything that isn't F#/C#.

‡ https://github.com/nozzlegear/shopifysharp