AMD produces their own x86 under IP licensed by Intel (and vice versa).
In any case if the US adrenaline fueled diplomacy, starts violating hundreds of years old borders of it's allies, respect for ambiguous IP Laws, will be pretty low in the list of priorities. :-)
The details have never been disclosed but it is well known that this agreement fell within the domain of national security and export controls.
Here's a press release [1] directly from ASML that references these export controls. Even though this PR actually relaxing DUV controls with respect to the U.S., it reaffirms that "EUV systems are also subject to license requirements."
[1]: https://www.asml.com/en/news/press-releases/2024/dutch-gover...
In return, the consortium would have exclusive rights to the technology in the EUV lithography field of use
Researchers at Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory, and Sandia National Laboratories were funded in the 1990s to perform basic research into the technical obstacles. The results of this successful effort were disseminated via a public/private partnership Cooperative R&D Agreement (CRADA) with the invention and rights wholly owned by the US government, but licensed and distributed under approval by DOE and Congress.