Thanks for the response. I am not knowledgeable about datacarriersize. Does this refer to a constant in bitcoind code? Does it only apply to OP_RETURN?

I was under the impression that BRC-20 uses the inscription data envelope technique, which does not involve OP_RETURN. That makes me think you are using datacarriersize to refer to the total amount of data you are willing to allow a transaction to store, regardless of the technique used. Can you please clarify this for me?