I'm new to chess and I want to ask you what do you think is the best first move in chess.
If you're new to chess, the best opening to help you learn and improve is 1.e4. There's nothing wrong with 1.d4 but it's a lot harder to learn for beginners.
Other moves like 1. c4, 1. Nf3 And 1. g3 are fine for experienced players but there are a lot of transpositions and beginners will miss most of what's going on.
When I teach chess, I recommend openings like the Bishop's and Vienna. These openings give white playable games and lead to the types of positions that make you better.
Either 1. d4 or 1. e4. We don't know.
These two moves dominate elite human chess, and are also the choice of engines. For example, left to her own devices, Leela Chess Zero (in all her incarnations, with different nets, binaries, and such) will play one of these two moves. Same goes for all versions of Stockfish if you don't give Stockfish an opening book.
Do note that if chess is a draw (almost everyone thinks it is) then there is no "best move" because they all lead to at best draws anyway.