Unable to get the product Key for VS 2022 in my subscription

Thank you for reaching out. I hope you're having a great day! Let me assist you with your query.

Your Visual Studio Dev Essentials 2022 subscription provides a trial license only, not a retail product key. If you purchased Visual Studio at retail, please install and register using the credentials from that purchase. Alternatively, you can install the trial version and If you need a full license, you can upgrade to a paid Visual Studio subscription via https://marketplace.visualstudio.com/subscriptions.

If you have any further questions or need additional help, feel free to reach out. Have a great day!

Visual studio is sold as a monthly or yearly subscription. When purchased via a website there was a link to create the subscription, or an email was sent. After this the subscription is tied to your Microsoft account. You can login to check your subscriptions.

https://my.visualstudio.com/subscriptions

To activate a visual studio installation, you click on activate on your profile, which will login to your account and list you valid subscriptions. Pick the one you want.