@jackpot Then they ask what's a bios? what's a product key? how do boot from USB? there is huge details your missing maybe for a Linux native 15 minutes seams reasonable but my first install took maybe 45 mins, and I'm tech competent.
Also people will be asking how do they copy over their data already on windows. The other question for many is why would I want to? sadly the general population doesnt care about open source