It seems that they remove the legacy format from ledger live according to this
https://support.ledger.com/hc/en-us/articles/115005195945-Bitcoin-BTC- under bitcoin address formats.
But you can able to generate a legacy wallet on 3rd party wallet.
Can you try to connect your ledger with Electrum, you can download electrum from here
https://electrum.org/Then follow the guide from this link below on how to setup ledger with Electrum
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https://support.ledger.com/hc/en-us/articles/115005161925-Set-up-and-use-ElectrumJust make sure to choose a legacy account to generate a wallet that starts with "1".