I moved away from Dropbox years ago, after it pissed me off on Windows (basically, the Windows client was ludicrously inefficient, and there were constant sync conflicts).
I switched to Seafile, backed by Azure blob storage - so much better than Dropbox. The Windows client barely uses any CPU, sync conflicts only occur when I'd expect them to, and of course you can sync files regardless of whether they are in a fixed "Dropbox" folder.
I have Seafile and Minio running in containers, so it was super-easy to setup, and is a doddle to upgrade too.
I switched to Seafile, backed by Azure blob storage - so much better than Dropbox. The Windows client barely uses any CPU, sync conflicts only occur when I'd expect them to, and of course you can sync files regardless of whether they are in a fixed "Dropbox" folder.
I have Seafile and Minio running in containers, so it was super-easy to setup, and is a doddle to upgrade too.
Haven't looked back!