When they were talking about Gaudi they mentioned that they had a harder time with software migration than expected which impacted sales. Seems they're banking on the Gaudi 3 rollout and contract with IBM to push sales up over here.
Spoke a bit about PTL and NVL saying 70% of silicon is in house, so just a wild guess on my part: GPU tile still TSMC (I'm hoping they aren't being shady and counting interposer).
LNL sounds like a one off part as not only did using TSMC hurt the margin but the on package memory was singled out. They mentioned no parts with on package memory on the road map. LNL did turn out better than expected so the order from TSMC was tripled.
They overbought equipment for Intel 7 during the pandemic which was part of the write downs.
information from (a lot of analysis and more information here too):