Rider is pretty much the only decent option for me, if Linux is a requirement. However not even Rider supports .NET Hot Reloading (Edit and Continue), because Microsoft hasn't implemented runtime support for it in Linux. Doing so would probably work against their vested interest in rolling in Visual Studio subscriptions. Yet EnC is a significant timesaver for my projects, to the point where I find it hard to work without it.

https://github.com/dotnet/runtime/issues/12409

So the most efficient C# development solution for me is going back to Windows and Visual Studio. As they want it to be.