I just came across this Supergirl proof of content film on YouTube.
Here is the blurb:
This proof of concept video was originally intended to be a fan film, but we decided to expand the idea to a series of fan-created connected stories told inside the DC universe. The first installment will be released in early 2022.
Josie Jackson as Kara/Supergirl
Laura Connally as Barbara Gordon
Jennifer Kay Godwin as the Reporter