There are three Linux distros supported by Red Hat. Red Hat Enterprise Linux (RHEL) is their bread & butter paid support distro, used by businesses all over the world. CentOS is the "free" mirror version of RHEL that does not include support (beyond open source community). And Fedora is their free open source bleeding edge distro that is used to test/demo/beta new features/patches well ahead of RHEL/CentOS that ultimately feed into a future super-stable RHEL/CentOS release.
I have CentOS 7 installed on a separate drive on one of my home Windows 10 PCs (yes, I actually like Win10!!). Very stable & useful for what it does. Only caveat is that the RHEL/CentOS distros are more oriented for business than personal use, like the Debian-based Ubuntu or particularly Linux Mint distros are. The latter distros are primarily targeted at home PC users vs. businesses, with more games & personal use type packages available.
Great reply; looks like we’re on the same page (see #32 above). :-)