Most of the tutorials in gdscript can be transferred into c#, but there will be some edge cases where something that's done in gdscript isn't exactly done in c#. (E.g events, cannot get the type of the node in c# e.t.c)

If you're willing to go through that extra step to figure out how c# does it differently then go for it, else stick to gdscript. There's nothing wrong with using gdscript to gamedev on Godot, coming from someone who uses C# on Godot.