These are apps compiled specifically for ARM processors but in a 32-bit format. Many built-in Windows features and early Microsoft Store apps used this architecture.
No Microsoft signing authority will verify binaries from these emulated builds. It is for debugging only.
Given that, I can produce a that:
This is the only legitimate "Windows 10 ARM 32 bits" operating system. Windows 10 IoT Core (last version 20H2) ships for devices like the Raspberry Pi 2/3 and NXP i.MX.
These are apps built specifically for 32-bit Arm processors. Windows 10 Arm supports these natively .
To understand "32 bits verified," you must first understand the SKUs (Stock Keeping Units) of Windows 10.