It really depends on what cloud services are used. The strategy of all the major cloud providers is to attract customers with cheap low lock-in commodity resources like S3 or EC2 and convince them to start using high lock-in and high-margin services like serverless computation. If they succeed (and they frequently do), the bills go through the roof.
Read also: https://a16z.com/2021/05/27/cost-of-cloud-paradox-market-cap...