A little Tricholoma such as T. vaccinum?
No identification made yet.
No interactions present.
was it under conifer as does look like your suggestion.
It was in mixed woodland, Picea, Pinus, Betula and a few Populus and Alnus. This bit probably mainly Pine. I have a photo of the woodland too but not showing the fungus in exact location
Lat/Lng: 59.8639, 38.2787