There’s a junction a bit like that on the A1000 not far from me, I imagine others on here will know it. Left lane is turn left, right lane is straight on.
If you stay in the correct lane and avoid the situation where you get stranded on the left and effectively have to cut across a lane of traffic to go straight on, you are riding for a while in the middle of the road. I don’t think I have ever managed to stick to the correct lane on that stretch without getting abuse for doing so from drivers. Being a cyclist can be trying at times. 🙁