Looking to keep compare and keep larger videos

[PatternRec]

I have two folders with videos I took on my phone in them. Both folders have the same videos in them with identical names but some of the videos in each folder are ones that were compressed by google photos and some are the larger original videos that got mixed up together

What I want to do is use FFS to compare the folders and replace the smaller compressed versions with the larger original videos.Is it possible to set up the compare and sync settings to do this automatically? Or do I have to manually check the file sizes and set the sync direction for each file individually? There are hundreds of files so I prefer to not do it manually.

[xCSxXenon]

If one folder contains all and only the originals, you can just do a mirror sync from that folder to the other one. The originals folder would be the left-side location

[PatternRec]

Thanks for the reply. the folders had gotten mixed up in a way so a one way sync or a mirror sync wouldn't have worked. Either would have replaced some of the files I wanted to keep. I ended up doing it manually and got my stuff sorted.