I started using my drone with a new out of package SD card and didn’t do anything to it other than put it in the drone. It created its own folder structure and recorded video and stills. I have chosen to “format” the card once from the app and it either formatted the card and recreated the folder structure or just deleted the folder contents (don’t know for sure) but all of the “old” content was gone. The format process only took a minute or less.
I actually make it a practice to only copy the files from any camera card to my PC. Any deleting files or formatting I do with the actual recording device but maybe that’s just me.
I’m curious why you would format in your PC?