capitalism is fundamentally incompatible with actual infosec. it's great at faking it, at selling you a product that says it will solve all your security problems and which will just be another attack surface, but the core goal of increasing corporate profits will always be at odds with nearly every possible aspect of information security
run an adblocker for both personal security and ideological reasons. something like uBlock origin is going to be more effective at keeping horrible shit off your computer than actual malware scanners will, because tricking you into installing that shit yourself is the primary attack vector for it these days. it's just social engineering, but automated to use ad networks so it's much more efficient
Advertisements have always been malware for the human brain, so them jumping the silicon barrier is not unexpected.