sobersick It always becomes a questions of convenience vs. security and what your expected threat model is.
Windows can be made substantially more secure than it is "out of the box" by adjusting various settings and services. Unless you require those services for work or other use.
Linux is my go-to default desktop/laptop OS, and it too can be hardened pretty quickly & easily over what most distros offer as stock out of the box. If you want to run a website from your own computer, one of the *BSD's is likely the way to go. If you want to have one of the best protections for your entire home network, dedicate an old desktop to run PFSense or one of the similar firewalls. This last option takes some work, but can be incredibly effective, and - depending on your configuration - can offer feature parity with commercial grade firewall gear from Cisco.