I'm glad you found the article insightful! Stepping into the AWS Partner Network (APN) is a great move if you're already leveraging AWS services. For Software Partners, the minimum is to have a product in GA (general availability) and go over the AWS FTR. The FTR is primarily technical. It evaluates your application against specific AWS best practices around security, reliability, and efficient architecture. Here is the FTR validation checklist: https://apn-checklists.s3.amazonaws.com/foundational/partner-hosted/partner-hosted/CVLHEC5X7.html
Now to your question how long does it take to be recognised as an AWS Partner - once you complete the FTR, it is very fast, a matter of days usually. For more advanced Partner milestone timelines, check out my Cloud Partnerships Udemy course under partner timelines episode. Here is a free link that valid for the next 14 days: https://www.udemy.com/course/scaling-your-business-with-cloud-service-providers-csps/?couponCode=COSELLENABLEMENT
Good luck on your AWS Partner journey! If you have any more questions or need further clarification, feel free to ask.