I have been playing empire earth one and 2 frok gog for a few years and i have alot of stored save multiplayer and single player game data saved on it, I have the games stored onto my usb drive. Now, when I take my usb drive and connect it to another computer, my game saves arent on that computer, I just found out when i play my gog games for the first time they create a data folder in my computers local documents file that contains the saved data.

Is there a way I can transfer my games saved data from my computers document folder to another folder so i can carry on my saved progress on a different computer or laptop?

Yes, you may save the entire folder with your saved games on another external drive (flash drive) and then after you load the game on your new computer place the contents of the saved games folder inside the folder with the same name on the drive where it's located on your new computer or laptop.

It really depends on the game, but in that case, it appears that yes, transferring the folder would work potentially.

For some info on where games save locations are you can search here:

https://www.pcgamingwiki.com/wiki/Home at the "Save game data location" area