I run Linux on my personal machine.
My needs aren't particularly demanding. Web browsing, watching streaming services, accounting software, some low impact games, 3D modeling, and running a video server.
I assembled my machine from $500 worth of parts 12 years ago. In between, I've added some RAM, and about 8TB of mirrored disk to store movies for the video server.
Admittedly, I'm starting to be concerned about the age of the disks, and I think I'd like a better processor, but money is tight.
Given the age of the thing, there's a chance that it's just going to drop dead one of these days, but it's been running for years without me having to do anything but install updates for the OS.