Do you think it’s safe to buy coins directly from trezorr using your credit card?
I guess you mean using Trezor Suite to buy crypto coins with a credit or debit card. Yes, why not? You don’t say why you ask if it’s safe.
So long as you realize that the executing company you use for the transaction probably want to go through a Know Your Customer (KYC) procedure first, to identify you. This often include showing a passport or other ID and your face on camera.
It’s also possible to bypass any KYC and middleman by buying directly from other coin holders through Peer to Peer (P2P) and Hodl Hodl.