This article should answer your question:
https://www.huaweiblog.de/news...
As I understand it, this is available from EMUI10. I only have EMUI9 with Salt.
"The EMUI 10 desktop mode is the logical further development of the EMUI 9 functions "wireless projection". This allows files to be exchanged with the PC or laptop. That was already practical. But it was all based on the folder principle of Windows Explorer. This is exactly where the EMUI 10 Desktop Mode comes in. Because with this, the smartphone can be mirrored completely - and of course wirelessly - on the PC. "
But only with EMUI10. You can download it manually via detours. It's all in the linked article above.
