Staining expanded deck

We bought a new house in 2020 and after the year we stained the deck with Cabot Gold Satin Moonlit Mahogany stain. Last year we expanded the deck and added a roof. Now I have a half stained/half unstained deck. What would be the best to use to create a deck that looks uniform. I don't care if it is even a solid stain if that would cover the old stain and make it uniform. The old part has to be stained because Cabot sucked and is wearing off in a lot of areas. I have had a hard time finding answers and a stain that will look good and last. Obviously the expanded deck is covered now so the sun doesn't kill it like it used to in the Tennessee summer. I know I will need to clean the deck well first but any other suggestions or help is greatly appreciated.