Well, yeah. I have MSI GTX 1060 Gaming X 3G in use in my 2nd build. (Main build has MSI GTX 1660 Ti Gaming X.)
And i can get better than this, by having Club3D Radeon HD 7770 Ghz Edition in use in my 3rd build.
I even have my ancient Radeon HD 5450 lying around in working conditions.
So... there's not much of a surprise having older or even ancient GPUs still in use, even today. As long as GPU works and is enough, no point to replace/upgrade it.