Yes.

Public Nouns DAO treasury receives ETH via the auction sales of Public Nouns on mainnet.  100% of this goes to funding experiments in public goods. (~205 ETH)

Also, pnOps has received funding to use in operations, marketing and growth of Public Nouns.
This funding has come via donations and matching funds on Giveth (~$7k), donations and matching funds on Gitcoin (~$1k) and OP grant in Optimism PGF Round 3 (~45k OP).