It might just be personal experience but I've found things always look crappier on Linux than on Windows. I have been off-and-on Windows and several Linux distros on my laptop, and I have found GUIs and multimedia graphics on Windows are always a tad bit more vibrant, clearer and better-looking in general than on Linux. There is just something inexplicably wrong with how Linux setups render things, even in the OS's own GUI (for both KDE and GTK-based DEs) - fractional scaling (if it exists) just makes everything blurrier and worse-looking, fonts look wacky with uneven kerning and ineffective anti-aliasing, colors are dull, etc.

Not to mention GPUs just go ballistic and drown out the game's sound with fan noise every time even when you're running a simple 2D game. You always have to keep the iGPU on and the discrete card off by default because it apparently has just two modes - off, or full-power. Smart throttling like on Windows is non-existent.

I don't mind the extra effort needed to set things up and gather knowledge on running it for the trade-off of a truly free system. But these things are out of any user's control and keep me from completely shifting over.