that’s right!
Exactly same as i did. I install a game, choose a letter F: (there was no ability to pick folder)
After install i had F:\WPsystem\bla bla bla bla bla…
Now i think, maybe in the first run, when it starts download, i had an oportunity to choose folder, but i didn’t notice that and i’m not sure of that
Inside ms store on the install there is no way to choose folder, only drive