Hitman 3 random crash to desktop

Hi.

I bought hitman 3 on epic games.
My PC is an alienware 18.
16 go ram.
SSD drive.
Intel I7.
Windows 10 pro.
2 x ATI Radeon HD8970M (brand new)

The game crashes to desktop randomly.
Sometimes after 1 hour, sometimes after 10 min.

Everything is up to date: windows (including optionnal updates), ATI drivers, all other drivers, game itself, VCredist, Net framework, directX, game launcher…

I tried almost everything.
Check file integrity,
reinstalling launcher + game + Vcredist + directx + net framework,
changing different AMD and game settings (a dozen times),
increasing virtual memory in advanced system settings,
disactivating secondary graphic card,
disactivating audio devices,
running launcher as administrator,
killing most of the background tasks,
disabling firewall + anti virus soft,
setting high performance in power options,
no overclocking,
and more.

But the game keeps crashing to desktop.
No error message.

On the forums, many people are complaining about hitman 3 crashes, but never the problem seems to be solved.
I have ni idea what I could try else.

Do you have any more hints for me?