Without doing research, but the Linux Foundation is also the parent of the CNCF, the foundation that funds Kubernetes and many adjacent projects. I can imagine that they get a lot more money as there are probably more developers handling CNCF projects than the Linux Kernel.
Yes, but it would be an even bigger blow to TSMC if all US companies would stop buying from them. I'm pretty sure nvidia, AMD and Apple make a very sizable part of their customer base.
Just put them at the end of the queue if they're not there when scheduled.