Bep2 is binance beacon chain right? If that's correct then you should know that dai in bep2 is available on binance exchange, I just checked you can make deposit in Dai bep20 chain to binance and withdraw in the same format too.
Yes, but @OP will be subject to KYC.
IIRC, Trust Wallet in-built swap/bridge feature might be able to convert the token. Though, I don't know for sure if directly converting DAI to some other token is available.