Usually, people clean up a new chain with a degreaser and then re-lube the chain with the lube of their choice.
In most cases chain noise is lube related, not necessarily chainline related.
BTW, wrt chainline, the target is 42.5. But, most modern hubs, cogs combinations will give you 42.75-43.75 or thereabouts. Which is why people like adjustable BBs. From
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