I really don't like the left side of buses and lorries. If stationary, if there is clear space between, no railings to block an escape and no other good alternative, I may decide on up the left side, but it is incredibly rare I decide this is worth it.
Mostly I am filtering to get to the front of traffic lights for two reasons. So I can be clearly seen by the traffic - if the lorry is first in the queue, by filtering in front I may have made visibility much worse, and also so I only have a maximum of one light sequence change to wait. The second argument isn't strong enough to filter left past a lorry when I have any doubt at all.
I filter right all the time past all stationary traffic. But lorries I make sure I take an extra wide berth.
This is why I am an advocate of segregation at major traffic lights, but only if cyclists have priority, and don't have to wait 3 changes of traffic lights before going, and the cycle path is sensible, wide, and has easy and safe entrance and exit from the road itself. Of course, with our shoot infrastructure, the cycle lanes are poor on straight bits of road and then panic and disappear completely in the face of something more tricky like a junction.