Possible, but increasingly difficult to do in Windows.
The complaints are valid when it takes a significant amount of customization and tweaks to get Windows to do what you want and get out of the way, as any OS should do. And only the diehard Windows fans and power users ever go to the lengths it requires to get Windows 11 running well enough to even begin comparing overall performance to Linux.
And I don't think it matters whether or not a Linux distro is a gaming oriented version, Linux
operates more smoothly, especially on lower end and older hardware than Windows 11 ever would, and Linux updates in the background without forcing you to restart the PC.
Valve has been putting in a massive effort to achieve games running a lot more effortlessly on Linux than it has in the past, although those attached to Windows for the Office suite, and Windows only games where the publisher refuses to support Linux, I doubt anything would convince those users to get away from Windows.
Difficult? Literally takes seconds with a GPO.
And in Windows 11 now, it can be done in the Windows Update settings.
Linux makes no sense for people building high-end gaming PCs.
Even Valve said Linux have a long way before being able to match Windows and that anti cheat is a huge obstacle, that will take years and years to overcome, if it ever happens.
Proton layer typically eats 5-25% performance. While some games tend to run fine in Linux, others run vastly worse and many won't even start. Hence why games have Windows listed in the requirements.
FYI there is a difference between casual and serious gaming. Some of us, builds high-end gaming machines for 1000s of dollars that are meant to deliver gaming performance you could only dream of. We don't settle and we don't want to gimp performance by running Linux. Or limit our game catalog.
I use an overclocked 9800X3D and 4090 and uses a tweaked and optimized custom Windows 11 install. Linux is not going to make anything better for me. I am pumping out 500 fps with 250 fps minimum 1% lows on a 500 Hz OLED panel.
You playing an indie game in Linux with a goal of 60 fps don't really compare. Some people won't settle with lower performance, lacking games or crashing due to emulation.
While Valve wants Linux to get better, like 95% of their users are on Windows. PC games are made and optimized for Windows. Drivers from Nvidia, AMD and Intel, 99% of the focus is on Windows.
I would love Linux to actually be competitive on gaming - but it is not. I run Linux on 4 out of 5 PCs. My primary gaming machine is the only one NOT running Linux but I have tried several distro's and it is not even close to matching Windows 11 overall. That is reality for you.