Coolant in engine oil: can it be turbo or headgasket?

Hi everyone,
Inside on the oil cup noticable white stain collects after some time engine running, which should be sign of coolant or water in engine oil. Do you think that’s sign of headgasket leak, or this can also can be for other reason. One thing coming to mind is turbo (stock t25) letting coolant, or that is not possible?

Thx

If your oil isn’t milky on the dip stick it’s likely not coolant in the oil. You usually get that white milky build up under the cap when the car sees short trip driving. It’s just condensation in the crankcase. If the car doesn’t get driven long enough on a regular basis the engine doesn’t get hot enough to burn the condensation off.

yep nothing to be worried about perfectly normal especially in the winter