Hello, Youla Vellinis.
Welcome to Microsoft Community!
Your trust and support for Surface products and Microsoft products is greatly appreciated here. Regarding the system compatibility issue of Surface Go, please allow me to share the following with you.
First of all, I fully understand your expectations. Running the latest system version on a modernized device is a very reasonable need from a usage perspective. However, the Surface Go, being the first generation of the Go lineup, has hardware-level limitations.
Simply put, the main reason Surface Go does not currently support upgrading to Windows 11 is that the CPU model (Intel Pentium Gold 4415Y processor) does not meet the minimum hardware requirements for Windows 11. Meanwhile, you can also refer to the following official documents to learn more about Surface compatibility with Windows for more information:
Surface supported operating systems - Surface | Microsoft Learn

I will continue to answer your questions:
1. Why wasn’t the Surface Go Model 1824 prioritized for Windows 11 compatibility?
The Surface Go release is scheduled for July 2018, while Windows 11 officially enters development in early 2021.The Surface Go is intended in order to provide a portable, affordable and powerful 2-in-1 device for students, home users and light office needs.
The Intel Pentium Gold 4415Y processor was chosen for its balance of performance, battery life and thermal performance. While this processor is not the top of the line Core series, it provides enough performance to handle everyday tasks while keeping power consumption and heat generation low. This allows Surface Go to provide a great user experience while maintaining portability.
2. Are there plans to extend support to slightly older devices like mine, or provide an optimized Windows 11 version for Surface Go users?
Currently, Microsoft has no plans to offer an optimized version of Windows 11 for the initial Surface Go. The Microsoft community cannot hide this fact from you. From your perspective, we'd love to see Windows 11 have broader compatibility and include more older CPUs.
In fact, Microsoft does continue to optimize Windows 11 to provide a better experience on more devices. Therefore, we can still look forward to a future update of Windows 11 that may be compatible with the Intel Pentium Gold 4415Y processor.
You can view eligible devices at Which Surface devices can be upgraded to Windows 11? - Microsoft Support
3. What options do Microsoft Surface users have to ensure their devices remain current with new OS releases?
For the Surface devices to synchronize with the latest version of the system, users hardly need to worry about the issue in the later models released. As the hardware specifications of later products are upgraded and updated, they have greater performance and compatibility. Synchronizing the latest system version often just requires automatic installation when the device is booted.
For older devices, Microsoft recommends continuing to use Windows 10 until the end of the device's support cycle. More at End of support for Windows 10, Windows 8.1, and Windows 7 | Microsoft Windows. Windows 10 is still a very reliable and convenient system version. Of course, if Windows 11 is optimized for compatibility with your Surface Go in the future, you can upgrade right away!
I am sure you are a very caring user of your device and that is the reason why this Surface Go has been with you till now.
We value user groups like you very much and will keep a record of the events and needs that you post.
Thank you again for your support and love for Surface products.
Finally, please allow me to express my sincere wishes.
Best Regards.
Leo.L - Microsoft Community Support Specialist