Majority of malware (intended for average users) still primarily targets Windows, so there is just less chance you will ever encounter it on other platforms. It

Majority of malware (intended for average users) still primarily targets Windows, so there is just less chance you will ever encounter it on other platforms. It just makes sense to target 95% of people, and not care that much about the rest. Most if not all vulnerabilities on up-to-date iOS/Android are used for targeted attacks (people with power, journalists, etc.) and not to reach regular people. AFAIK most malware is still delivered when users install some software, so it would be nice if Windows would become a bit more locked down by default, and only allow installing from approved stores (i.e. Microsoft Store, Steam, and similar.)