I'd be more likely to believe Geekbench is just a terrible, broken benchmark than anything else.

An Epyc 7501 (32c/64t) apparently only gets 17k multicore score on geekbench under windows: https://browser.geekbench.com/processors/2141

Which is hilariously wrong. And if you think that's some quirk of Epyc, well, same CPU gets 65k when run under Linux: https://browser.geekbench.com/v4/cpu/10782563 So clearly there's a software issue in play. Maybe this is related to the new Windows scheduler change. Maybe geekbench just has some pathologically bad behavior. Who knows.

So yes we should wait for release & independent testing before getting too excited, even if that's just so we get numbers from something other than geekbench.