The lunar apogee this month is 404,973 km from the centre of the Earth at 08:33 UTC on April 7th. Artemis II reached maximum distance from the Earth at 00:07 UTC—just a few hours earlier.
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That meant they were able to clock in a maximum altitude of 406,771 km—just beyond the lunar apogee.

Congratulations, NASA!
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The Moon was similarly far away during the Apollo 13 abort which meant, despite their otherwise terrible luck, the crew held the record for furthest humans from the Earth for more than 50 years.
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