This is also far from my personal experience, you might not even realize what free software you’re depending on?

Your browser is most likely the most complex piece of software you interact with daily and it is most likely FOSS. The Linux kernel is FOSS and is incredibly robust. Most compiler suites, FOSS. Most programming languages, FOSS. These are all incredibly well written and robust tools. AOSP, kinda FOSS and the forks like Graphene are definitely FOSS. Hell even a lot of macOS programs are actually FOSS.

There is great paid and proprietary software out there, sure, but no it’s not the majority of top quality software in my personal experience and likely a lot of people’s experiences