This is… complex. We ship lutris and wine but obviously not steam. Installing steam isn’t too difficult, but involves extracting the rpm that they ship or the deb. It works, sometimes, for most games.
I’ve kind of settled on using steam from flathub since people are spending time on it and sorting out issues relatively quickly.
Remember: clearlinux isn’t meant to be a polished OS for novices. We’ll try and help you learn but it’s not ever going to replace windows.