Except Intel was the behemoth in the case. Here Steam is the one with marketshare, mindshare, and no serious competition before Epic. These exclusives are also usually time limited. This isn't Facebook buying whole studios and locking up content indefinitely.
Then Intel would enjoy a monopoly and instead of being stuck at Skylake for 4 years, we may have been stuck at Core 2 for 10 years.
Or maybe ARM, MIPS, Power or Itanium (!) would have had better opportunities to catch up with x86 and would be the dominant CPU.
Who knows, but AMD dying would have not benefited anyone who was stuck on x86.