has somebody tried this already. Found it on a German site. Here the changelog translated into english.
This update addresses compatibility issues, improves call performance, and improves system security by using Google security patches.
The compatibility issues with Orange Cash have been fixed.
The problem that some UI elements are displayed incorrectly has been fixed.
The problem that WhatsApp messages are not received immediately has been fixed.
Callstability in different networks has been improved.
Device security has been improved using Google security patches.
1. If any problems occur during the upgrade, please call the Huawei Customer Support hotline or visit an authorized Huawei service center for help.
2. No personal data will be deleted during this update. However, it is recommended to back up important data before updating.