I have never seen any of these things while browsing Steam. I feel like you have to go searching for it if you want to find it and you will find it on any platform if that is your intention.
This report makes it feel like 4chan 2.0 which is a place that would fit their description.
Instead this just feels like a lame attempt from Epic or some other competitor at pulling down Valve since they can’t/don’t want to directly compete fairly.
I’m sure there are some disgusting racists and imagery on Steam, but not to the extent they’re making it out to be or that Valve approves of it. As a matter of fact, if you go check out controversial games like Dustborn or the newest Dragon Age, you’ll see that Valve has actually been suppressing negative reviews, regardless whether they contain offensive content or not.
Linux hasn’t been that way for a few decades now. You can definitely get that “terminal exclusive” experience if you want, but it has been made so much easier in the last 20 years with most distros being as easy to use as Windows with a mouse + keyboard UI experience being the way you can do just about anything. The only times I’ve absolutely needed to use a terminal were for very special circumstances like a specific setting I wanted or back in the day when I needed to update an app, but even that is now taken care of in the UI with various distros using app marketplaces.
The true most complicated part has been the setup, but even that has been made more user friendly in the last 7 years. Though I have yet to see anyone make it as easy as Microsoft does to get a ISO of Windows onto a USB with one application, so I will give Microsoft that as the upper hand. Though this wouldn’t even be an issue if consumers had Linux ready machines in stores like you can for Windows and macOS.
Guarantee, if you put a Windows theme on a Linux distro or just use something like Zorin OS and give it to someone with little to no tech savviness, they will think it is Windows and use it in the same way and may not ever truly notice. And with websites now (past 5-10 years) detecting your OS, even going to websites to download a specific app will sometimes default to the Linux option. Microsoft Windows having an app store is what macOS and Linux have been doing for even longer.
The availability of apps/applications that users are used to using is the second biggest challenge most average users would face, but there are tons of alternatives to choose from in most cases, with some being better (better UI choices, little to no tracking, longer update support) and/or free.