Comment by kllrnohj

~5% of steam users have 16 core CPUs & 22% are more than 8 cores: https://store.steampowered.com/hwsurvey/cpus/

No idea where you're pulling your 99% figure from, but it seems quite unlikely.

Regardless, if compiling Chromium or similar large code bases is a thing you want to do regularly, it's unlikely to present a significant burden.