Firmware is region/carrier specific. Common builds:
Stock firmware is developed by Huawei/Honor. It is the safest choice for daily use. mya-al10 firmware
The MYA-AL10 is a specific model of a Huawei smartphone, and the firmware refers to the software that controls the device. Here's a general review of what I've found: Firmware is region/carrier specific
But this will wipe all data.