Best to start small with your first few games regardless. porting is always harder than the industry leads on to suggest and to be frank, your first games will suck a lot. Porting can come after making something people want to play.

But all of that is tangential to why I wouldn't recommend Godot for a first game not unless you are already a competent C++ programmer and are ready to dig into the engine for problem. But I always like when I can chime in on how frustrating the porting process is.