Hi loey salam
I'll remove the ID for security reason and thank you for providing the additional screenshots.
You are looking in the correct area. On this Surface model, UEFI does not display a separate page showing the SSD model or capacity. The “Internal Storage” and “Windows Boot Manager” entries under Boot configuration are boot options only, so their presence does not confirm that the internal SSD is currently detected.
Based on the earlier DiskPart screenshot, only the 57 GB USB drive is detected. This is also consistent with Windows Setup showing no available installation drives. Therefore, creating another ISO or changing the GPT setting on the USB drive would not resolve the issue, because the internal storage is not available to the installer.
You can confirm that all boot options remain enabled and perform one forced restart by holding the Power button for approximately 20 seconds. However, since the Surface recovery image, Windows Setup, and DiskPart all fail to detect the internal drive, the next appropriate step is to arrange a hardware inspection or service for the Surface.
Unfortunately, if the internal storage has failed and remains undetected, software commands cannot access or back up the personal files. Please do not use DiskPart commands such as clean, as those are destructive and will not repair an undetected drive.
I’m sorry there is not another recovery step I can safely provide from the forum side. At this stage, professional hardware service is the appropriate next step.
Thank you for your understanding