With the reality of high performance Arm processors from Apple and Qualcomm threatening Intel's market share in the client computing space, Intel is working on learner more PCB-efficient client SoCs that can take the fight to them, while holding onto the foundations of x86. The first such form-facto...
Intel doesn’t have enough supply for themselves and clients for leading edge nodes. Intel makes more money if they let IFS clients to buy their nodes and Intel themself get nodes from TSMC
No one really cares about Intel’s nodes pre-18A, and that theory doesn’t work regardless.
Also, Intel needs to prove the node in their own products before others will bite.