Windows 10: How I delete things from onedrive without deleting them from pc?

I deleted lots of things recently because ondrive was almost full but noticed some things on my pc were put on the recycle bin which I fortunately could retrieve but why would some things be removed from pc and some not? I played a game after deleted lots of files on onedrive to see if the game would even be playable and it was so I assumed nothing from the game was deleted from pc and just onedrive, HOWEVER... those files are still on the onedrive delete files folder and they'll be automatically delete in a month, could this mean that the game only works cuz the files are still somewhere on t

:)