Thank you for reaching out to the Microsoft Q&A platform. Happy to answer your question.
The link talks about putting the queue payload in a blob, which is how you get a maximum size, but You cannot increase the message size of Storage queues. I found below articles that leverage different patterns to achieve it.
https://www.serverless360.com/blog/deal-with-azure-service-bus-message-size
https://www.serverless360.com/blog/deal-with-large-service-bus-messages-using-claim-check-pattern
I hope I answered your question. If not, please provide more details in the comments, and I will get back to you ASAP.
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Please "Accept as Answer" and Upvote if any of the above helped so that, it can help others in the community looking for remediation for similar issues.