When it comes to fees, both platforms have the same standard fee of 0.1%. The difference is that additional fees vary, depending on whether you are within the U.S. or not. For example, fees for bank transfers to your Binance account are free outside the U.S. However, depending on your method of transfer, U.S. users may pay up to 4.5%.
To buy Safemoon, you have to add Binance Coin to your TrustWallet and then transfer that to Pancake Swap, where you can then buy Safemoon. This process is pretty complex, which is why many retail investors choose to invest in alternative cryptos.

Some experts have already expressed concern that the inclusion of the Binance Coin on the platform may prove controversial in the United States. While Binance.US is described as a subsidiary, its business model might draw attention from the U.S. Securities and Exchange Commission based on the fact that BNB token acts as both a security and a utility token. As such, it could pass the so-called Howey test for being security, thus potentially becoming a snag on the Binance’s path to establishing itself in the US.
As we don’t know exactly how to classify them, it’s difficult to attribute a direct causality to a specific factor and a crypto’s rise or dive in value.