OneDrive for Business Share Experience on Local PC

In reference to this article: https://support.office.com/en-us/article/sync-files-with-the-onedrive-sync-client-in-windows-615391c4-2bd3-4aae-a42a-858262e42a49

You might need to manually start the onedrive client if you did in fact install the new one already on the machine per this Screenshot.

But that link has the instructions for setting up. If it doesn't automatically sync the files to the new client, you might end up having to Stop sync of the old client. Delete the files from that OneDrive for business folder. Then setup the OneDrive client which will create a new by default OneDrive Orgname folder in your user folder.