Problem is, Linux Mint installer says nothing about that as far as I recall, and just offers a convenient slider to allocate space between Windows and Linux.
And that was my first computer. Yeah, I am relatively new to computers.
But hey, I only lasted with Windows for 2 days. In Windows 10 I couldn't even wrap my head around when to use Control Panel and when settings, because look, mature OS, we have Settings 1 and Settings 2.
In comparison, Linux Mint 20 MATE was far simpler, so having really used neither, I went with the easier one. However, that doesn't mean I had any idea what I was doing. I didn't even understand the concept of partitions.
Just imagine a total newbie.
"Where is the file stored?"
"On... the computer...?"