Huawei has re-released the P30 Lite as the New Edition, which has a lot of storage space compared to other devices in its price class and a front camera with a few extra megapixels. In this review, we will see whether this recipe still produces an up-to-date smartphone.
https://www.notebookcheck.net/Huawei-P30-Lite-New-Edition-Smartphone-Review-High-End-Memory.452676.0.html
Your review says that there is 893 Hz PWM. However, the graph you post says 893 kHz! It also looks like noise rather than PWM. Are you really sure it's using PWM? Please test for PWM on the lowest brightness setting.