Good. So since you never used a Hidden wallet with a Passphrase, that means you’re only recovering a Standard wallet in your Trezor.
Those are generated Receive addresses, maybe from your Trezor.
You said above that you never used a Passphrase, so which Passphrase did you enter and why?
Note that both Trezor and MetaMask (MM) have their own wallet, receive addresses, recovery seed, and passphrase (password in MM, I think). It’s important to keep these apart. Don’t use MM’s Password as Passphrase in Trezor or vice versa.
See here for an explanation:
I never used a native MM wallet myself, only the Trezor connected ones (“Trezor 1” and “Trezor 2” in the linked post), because I only store coins with my Trezor. It simplifies things a lot. For instance I don’t have to be afraid to lose the MM recovery seed because I never had any funds stored in MM. But if you use native MM accounts, you must know what you do and keep all accounts and keys separate.
It could be an address linked to a native MM account, I don’t know. It’s difficult to know without seeing the address and what you see in your setup. The key to solving this is that you provide more information.
Below you see my accounts in MM. I only use the Trezor connected one, not the native MM account so that is zero:
If you click on that multicolored icon on the top right in MM, you can see your own accounts. Please post a screenshot here (and blur out any info you don’t want to publish).