onedrive hard drive space

New introduction and one drive question hello I am new to the group. I have an older surface which I like a lot. I use it mostly when I go traveling. My problem is my one drive is making my surface hard drive full . I thought the purpose of one drive was that all my documents would be...

I have very little space on my hard drive. I made all my OneDrive files online and I deleted all the OneDrive files on my hard drive. When I open the OneDriver folders nothing is in it. Yet my hard drive is still as full as ever. I want to love my SP3 so much but this probably has been very...