Here is a PC Magazine cover from 1988: https://archive.org/details/PC-Mag-1988-02-29. It boasts a review of 55 different word processors. All of them would have been commercial; none of it was free, let alone open-source.
It wasn't just word processors. Here is a different cover: https://archive.org/details/PC-Mag-1988-05-17. It boasts tests of 43 different consumer-level database products. And magazine covers like these two weren't extraordinary.