Genuine question, more for soloentrepreneurs, but what if instead of adding ads from other companies, the perplexity company did other paid products? Then they

Genuine question, more for soloentrepreneurs, but what if instead of adding ads from other companies, the perplexity company did other paid products? Then they could put a few non disruptive ads for those into their main free product, and they would make much more sense. I want to apply this strategy into my (yet non existent) future products.