It's all a matter of perspective.
In abstract, I am pretty sure that if you are in a relatively modern home or office, there's anything from 1 to 10 computing units running Linux or a derivative within 10-15 meters radius.
But desktop Linuxes? Unlikely.
Again, in abstract, it might be very much worth it to move to a completely new (for you, Linux is anything but new) operating system, with loads of benefits for a home or a business, but it entirely depends on the kinds of tasks you need to solve, problems you may or may not be experiencing with your current setup, and you plans for the future.
Linux is still pretty much "a thing", and the number of compelling use cases is only growing, but it is still not entirely attractive to a mainstream audience.
For a software developer (and especially for certain subtypes of those), there is no question that (a desktop) Linux computer is a perfect fit. Dell XPS Developer Edition is a nice OEM example. Major IDEs, such as ones from JetBrains (IDEA)and Microsoft (VS Code) run on Linux as well as on Windows; for that matter, there's more of Linux inside Windows every year.
For gaming, unless you are just very enthusiastic about gaming on Linux as such, it's not a very good proposition, for about the same reason as on Mac - in fact, advances in emulation might even make Linux slightly better than Mac.
For photographers, musicians and other people reliant on specialised software and thus vendor-locked, Linux is still rarely an option. You don't get Lightroom or Photoshop or music software (which is incredibly antiquated even on PCs and Macs, as evidenced by all the trouble with OS X progressively disabling 32-bit applications), on Linux. Not enough critical mass. There are alternatives, as is evidenced above, but they are rarely mature or compatible enough for a field professional to switch. Again, if you are full of enthusiasm and have bandwidth to tinker and make some sacrifices - it's worth a try.
If your work can be done in a browser and a text editor - Linux is a no-brainer, it's great with both.
For DIY tinkerer Linux is a gift. I am in the process of remaking an old abandoned mid-2010 Macbook Pro into a fantastic home server, running Debian Linux - silent, cold-running, with built-in UPS capabilities once I replace the battery, with 16Gb of RAM and very nice i5 CPU, takes up no space at all, and can't be beat by any Raspberry Pi, because it has already amortised its cost many times over and was just sitting in a drawer. It can even be massively improved upon by replacing its spinning drive with an SSD (or two, since I do not need the DVD unit). On the other hand, my "smart home" is powered by a homeassistant installation running on a Pine64 microcomputer running Ubuntu Xenial. Any kind of old PC hardware that is still functional but is "too clunky for this day and age" can be revived and repurposed into nice things with Linux.