I don't think you've put forth a coherent argument here.
SPEC CPU is distributed in source form, to be compiled by the end user. There are restrictions on what kind of compiler options and other games you can play when making an official submission to SPEC, which Intel (and others) get around by publishing "estimated" SPEC scores and using those for marketing claims. In practice, the amount of bullshit in Intel's claimed SPEC scores is constrained only by what Intel's legal department is willing to risk getting sued over.
Geekbench is distributed in binary-only form with all binaries for all platforms originating from the author of Geekbench. All the major chip designers pay to see the source code and participate in the development, but the final decisions about what code goes in and how it's compiled are made by the author of Geekbench, not by the chip vendors. They just get to lobby, and AMD has every opportunity to call out Intel and Geekbench should the compiler options for the x86 builds be unfair.
Intel has a long history of cheating on SPEC, but cheating on Geekbench is more difficult because of the necessity of runtime binary patching and they didn't publicly try until this year, with limited success and lots of negative press: https://www.geekbench.com/blog/2026/03/geekbench-6-and-intel...