Well, it depends on the range of ELO you are looking at.
Despite a way larger base, I imagine, on BGA, the match-ups between top players are very rare (more than that) and the Arena format does not really help in that regard.
I believe that the level gap between a 700+ player here and a 400 is quite ginormous in a 2-player USA format. The top 15 players right now are all coming the old TTR app. There are as many players from the app who are quite underrated right now that should be closer to the top with a bit of motivation and better match ups (playing Arena you almost need to win 20/30 games in a row to compensate for a loss ELO-wise, which is quite unfun imo).
63/37 is a pretty good thing to keep in mind. The better the players in a match-up the tighter that gap will be.
For strategies, the best way is to watch the best players often. And repeat plays against top players. The 1-game format for a match does not help either to learn strategies : repeated plays against a player in a best-of-format help adjusting strategies and help to learn how to beat an opponent. At the top level, playing a 1-game match is like rolling the die.
Despite a way larger base, I imagine, on BGA, the match-ups between top players are very rare (more than that) and the Arena format does not really help in that regard.
I believe that the level gap between a 700+ player here and a 400 is quite ginormous in a 2-player USA format. The top 15 players right now are all coming the old TTR app. There are as many players from the app who are quite underrated right now that should be closer to the top with a bit of motivation and better match ups (playing Arena you almost need to win 20/30 games in a row to compensate for a loss ELO-wise, which is quite unfun imo).
63/37 is a pretty good thing to keep in mind. The better the players in a match-up the tighter that gap will be.
For strategies, the best way is to watch the best players often. And repeat plays against top players. The 1-game format for a match does not help either to learn strategies : repeated plays against a player in a best-of-format help adjusting strategies and help to learn how to beat an opponent. At the top level, playing a 1-game match is like rolling the die.