I'm a big Linux user - I run Debian on my server. It's really an amazing Server OS, it acts as a Media Server, a NAS, a DNS sinkhole to block adds, a VPN server, and it runs quite a few virtual machines.
On the desktop though, it's a bit of a different story. Gaming has always been finicky, and you often lack software to do certain tasks.
I did use Linux (OpenSUSE, Ubuntu a few other distros and finally Debian) as my daily driver on the desktop until about 2013 but I moved away from it on the desktop mainly because of the lack of games. I tried running stuff in Wine before, but I found it very hit or miss.
If there were more 100% native Linux games I'd consider moving back to it though.