There is an option to customize your MC within the Cheat Menu ...
If you make the right choices during the intro, your MC will get a nice thong and a sundress from the market ... and on day 2 at the lakeside Sammy might get the Exhibitionist perk and loose her virginity ...
My guess is ... The Fixer is made with an older version of Renpy ... and Win11 is often incompatible with older software ...