A Back to the Future/Supergirl what-if

For those of you familiar with the beloved Back to the Future trilogy from the 1980s, here a hypothetical crossover scenario and I would like your thoughts on it: How do you guys think an episode of Supergirl where Kara swapped bodies (Freaky Friday style) with the 1955 version of Marty McFly's mother Lorraine Baines would've gone? From Kara's perspective, she wakes up in the 1950s of the Back to the Future universe (let's call it Earth-85) in the body of Lorraine, while Lorraine, on her end, wakes up in the mid/late 2010s on Earth-38 in Kara's apartment. Kara (in Lorraine's body) would have no powers, while Lorraine (in Kara's body) would have all the natural abilities of a Kryptonian. How do you guys think the episode would play out? For Kara in 1955, we'll say the incident coincides with the events of the first film, with Marty in 1955 having to get his parents back together. On the Supergirl's end, how do you guys envision Lorraine (who would zero experience with the supernatural) reacting not just to the body-swap, but the fact that she has essentially God-like abilities. And how would Lorraine interact with Alex, J'onn, Lena, and the others? Just a fun thought experiment combining the show Supergirl with one of my favorite trilogies of all-time.