Yes, check some of the previous HashiConf keynotes to see the types of customers that are paying for it and which products they use. Also HashiCorp's financials are public, although without a per-product breakout. You'll have to connect the dots between some of these things to try and get into the rough ballpark.
Cloud revenue is a subset of Subscription revenue, and Subscription revenue is mostly Support ($101.9M). In fact, 3/4 of their total revenue is Support