[AnIdiotOnTheNet]

Ads are definitely present in Pro. Perhaps you're just not calling them ads. In the start menu you get "recommended apps", explorer pops up "recommendations" for OneDrive, and when you switch your default browser to Chrome it nags you that you should really give Edge a chance, to name a few things people are referring to when they talk about Windows 10 having ads.

Fortunately, there's free third party software that fix a lot of Microsoft's bullshit: https://www.oo-software.com/en/shutup10.

[scaryspooky]

Or you delete Cortana and completely break all of that bullshit. Though it has made it so a Windows 10 update will no longer apply, which is a frustrating side effect but one I am willing to live with.