In your link is this explained:
"Search for your MetaMask wallet address on Etherscan (or the corresponding block explorer if not on Mainnet), open the dropdown menu, and there will appear all of the tokens and NFTs that you own."
If i checked now
https://etherscan.io/address/0xca599eadb12633a45575a9920964f5b586993435there is nothing... but there must be minimum 5 nfts
"You can see all of the transactions performed with your NFTs by clicking "ERC-1155/ERC-721 Token Txns"
Cant found this option on eherscan...

Thanks!
What is that address? Is it yours? It looks like you copied a different address since it's empty. No prior transactions in it.
I picked a random address on the list of latest transactions on etherscan that you can use as an example
https://etherscan.io/address/0x4770b73ae49b8fae705e3eb9b1679da1e50981d8The address has 23 tokens and you can check them all if you click the dropdown menu as the guide says.
You can also see the transactions sorted out under different types of token such as erc20 erc721 and erc1155.