FWIW, oven/range circuits are notoriously overspecified.

Code in the US is 220V/50A. Your wall oven will get the same, despite having a much lower max draw than the usual oven/cooktop combination.

50A (upgraded from 30A several years ago) is specified for having the oven plus all cooktop elements ON. Maximum instantaneous draw will be below 50A. There's also the standard 20% headroom allotment, and some additional safety margin to account for the heat generated by all of the above being ON (or high duty cycle) for an extended period.