If you inherit a crossroads, if you play one of your estate (acting as crossroads), it will draw you cards based on the amount of victory cards in your hand (including estates)... but it will not give you 3 actions. I was a little disappointed.
In that Golem/artificer/masquerade game, you hardly ever gained anything from artificer. Did you consider, on hands where you played artificer with masquerade in hand, not discarding anything and gaining a curse to pass to your opponent? I counted around 7+ times where you could have done that, including turn 19 where you didn't play your masquerade for fear of not having anything to pass.
I've noticed that when the INHERITANCE event is bought in a kingdom where VINEYARDS are available, any VINEYARDS points attributable to "estates" are only allocated at the end of the game. By that, I mean that, if you use the point counter in Dominion Online, the score you see during the game will not be accurate as it does not count estates as actions for the purpose of vineyards until the end of the game, for some reason.