Delegator infos

I’m a newbie…
My question is in the documentation i found:
“## Accessing the Dashboard and Login that talking about the access to Goerli Testnet on Metamask before login” … but after the net switch … the link is broken or old… i’m not able to login.
Is this passage mandatory to delegate?
I can use the usual Ethereum main net, login connecting my wallet and delegate ?
Many thanks