Withdrawall BTC from gate-io

Please anyone knows what network to select at gate*io BTC withdrawal ? There are three options: Bitcoin BRC20/Ordinals, or BSC/BEP20, or Heco. I have no idea and Trezor is not showing the network as well.

Neither of those, you should receive BTC on BTC network.

Ordinals are not really supported, and sending btc on other chains is not real BTC, just pegged token.