I have to disagree to a limited extent. I recently tried to boot multiple current Linux distros from a USB stick for evaluation and all of them had issues. Fedora wasn't usable at all due to lack of space because it lost the RAM partition in the boot process and had severe graphical glitches. Ubuntu had issues with the Intel iGPU and installing drivers for the dGPU isn't possible in a live boot without persistence (and Ubuntu showed a blank error message when using the GUI for switching drivers). It also somehow managed to trigger secure boot so that I had to use a recovery key to get my data back. Zorin can download Nvidia drivers during boot and thus worked decently but the system would randomly freeze and had graphical artifacts when using the desktop cube. There were also other issues on Ubuntu and Zorin like with the permissions for bubble wrap to make Flatpaks work and so on. If it already requires tinkering before installing or with a completely fresh OS, then I find it hard to believe that desktop Linux can be a daily driver.