Sonarr the only *arr still on mono? Why not dotnet?

I searched here, all the documentation, github, and discord first, so I promise I really tried not to ask what feels like a stupid question :sweat_smile: I noticed (as a result of process manager) that the LSIO sonarr:latest still runs on mono rather than dotnet like the other *arr containers. I’m curious why this is? Isn’t dotnet better, less resource-hungry, etc? And isn’t mono going to be deprecated by the *arr people anyway?

Sorry if this seems ignorant, I don’t mean to sound like a twat. I’m not a coder and know just enough to be dangerous (i.e. mess with docker and a baby homelab :sweat_smile:)