With all the hype about the Eth2 Launch Pad for Medalla testnet many of us find ourselves in uncharted waters as we set up new nodes we're unfamiliar with. https://medalla.launchpad.ethereum.org/ uses the Goerli testnet. On the off-chance you've accidentally sent 32 real ETH to the deposit contract while following tutorials, theres a contract where you can get your mainnet ETH back.
NOTE: I'm not here to misguide, scam, or promote anything. I'm still learning, so it'll take me a while before I'm 100% confident in this contract. If anyone knows of a better/safer solution to retrieving mainnet eth, please let me know and I'll edit (or delete) this post.