I'd imagine for most Linux users (not all, of course) that they're not interested in paid proprietary products, which is why they chose Linux in the first place.
I don't think I've ever seen someone claim to use Linux because it's free (no cost). It's almost always because it's an open platform or because it has the best tools for the job they're doing (e.g. development work).
So in that sense, a Linux user might be less likely to use a product if they care most about the openness of the platform.