Agreed. Gmail is probably their best product and while they make money from Google Workspace, imagine without Google Ads, they'd have to start charging those 2 billion users who would then leave for a lesser but cheaper alternative.

And Google Maps and Waze and YouTube and YouTube Music.

It's always been unsafe to rely on most any Google product since they will eventually evaporate. But Google Search, YouTube and Gmail have always seemed untouchable, but without Google Ads, it's anyones guess.