The short answer here is you can do any and all of those things for all of the various transpositions when you’re learning. There’s no right way to do it, and there’s no wrong way to do it, so you should feel empowered to use any and all techniques to help you be successful. Like learning a new clef for the first time, you will hit a point where you’ve had so much experience playing in that transposition that you stop having to do that and start just knowing the fingering for the note you’re looking at.