Fact or conjecture? Free does not mean gratis, it means with little or no restriction. Linux users aren’t in it for a free ride, it’s a choice, and a great way to use a modern OS. There’s plenty of software on Linux that requires a subscription or licence fee, and I use some … I’d argue that there are many Windows and macOS users who choose to use free(ware) software.
I bought a Windows 10 licence last year solely to run Roon. Hated the fact that Microsoft was pushing all sorts of useless information to the desktop. Hated the experience, and hated the performance. It’s gone for good now.
My son switched from Windows to Zorin OS* last year, and hasn’t looked back (no encouragement from me.)
*BTW, he paid for the Pro version.