It's hard to assume that posts like these are from a newbie account.
It's best to search using the forum; you'll find detailed answers to all the questions you asked in your last three posts.
Yup, and also the comparison he wants between BlueWallet and Trust wallet is wrong in the first place because Blue Wallet is a bitcoin-only wallet, and Trust wallet is a multi-coin wallet where one can store bitcoin along with altcoins.
I prefer to use a Bitcoin-only wallet for storing Bitcoin, and Blue Wallet is the right choice, although I myself prefer to use Electrum. For altcoins, I would suggest using an open-source wallet like Unstoppable and avoiding Trust Wallet, as it has had some issues in the past, too. I hope OP is educated enough know the difference between open source and closed source wallet and their pros and cons.