Hey, hope you're doing great. Really sorry for the trouble. Here to help.
1. Check if both your devices are updated to the latest version.
2. Both your devices should be connected to the same wifi. Only then you'll be able to see those Synced files.
3. Check if you're logged in to the same account on both the devices.
I'm attaching a hyperlink with steps to sync local files to all devices. If you follow those carefully, I'm sure you'll problem will definitely be solved. It's short and easy.
Click here - Synchronisation
I hope I could be of some help. If I was able to solve your problem, I'd be glad if you mark this as a solution.
Thanks and cheers!
Have a good day😀