Does Atomic Wallet offer hardware wallet integration?

As of now, we don’t offer any kind of native integration with hardware wallets such as Trezor or Ledger, albeit we may be working on it in future.

Even though no integration is available at this moment, it’s certainly possible to use both Atomic Wallet and some hardware wallet of your liking simultaneously. It may be sensible in your case to spread your funds between the two wallets to add another layer of security.