According to the HuaweiCentral, Huawei is now rolling out a stable EMUI 10 update to the Mate 20 and Huawei P30 series users in Europe.
Huawei P30 and P30 Pro running EMUI 9.1 receiving this update with EMUI version 10.0.0.168 while the update size is above 4GB.
Huawei Mate 20 and Mate 20 Pro running EMUI 9.1 receiving stable EMUI 10.0 update with version 10.0.0.154 and Huawei Mate 20 X (4G) receiving EMUI version 10.0.0.180.
To get it done just Go to Settings > System > Software update > Check for Updates. If an update is available, it’ll ask if you want to download it.
Or open HiCare app > Update > Check for updates.
