Does the electrum server i connect to see's all the addresses in my wallet (currently generated+ change address), even if they didnt had a transaction?

Does the electrum server i connect to knows the master pub key of my wallet?

Does the electrum server i connect to knows all the previous transaction ID's I did with  my wallet?

Does the electrum server i connect to knows all the labels I inserted next to the addresses and transactions, or is that only local to the wallet?