The mostly non-existent drivers of Linux
The mostly non-existent drivers of Linux are why you can't buy PCs at your local store with Linux.
Linux will only play nicely with about 1/10 of existing devices.
Converting any PC in the last 15 years to Linux is always a crap shoot, sure the OS loads, but then the mouse, or the screen, or the sound, or the printer, or the network card don't work.
Don't even try searching Linux forums for solutions or help as you will be met with snarky developers who will heap abuse on you for not being smart enough to write your own driver.