I'm using NixOS currently on both my gaming pc and my laptop, you should absolutely try it it's as good as it sounds
Takes a bit of learning if you want to use it to its fullest but it's great out of the box too provided you read the getting started guide
If you do make the switch I would highly recommend putting your NixOS configuration file(s) in source control of some kind, it'll let you revert to previous builds out of the box but afaik you can't revert the config file itsself