Hi,
Not only does iCloud drive not have selective sync but uploading photos to iCloud does not work either. I have 40000 photos and about 600 short video clips. I managed to upload all my files (56 GB) and backups etc. (14 GB) and then my photos started uploading. I am now at 8094 uploaded photos and 416 uploaded videos and in the past 3 weeks about 10 photos have uploaded. In the meantime various processes relating to photo/video upload/conversion are running which are using up to 140% of CPU and making the fans come on permanently.
I contacted Apple support and they were really great. At first a young man gave me some advice but that did not work so I got them to call me again. Then a young lady tried to help and after 20 mins she passed me over to a senior analyst who spent two hours on the phone with me and we cleaned up my MacBookPro a bit.
However, the problem is still not solved and next week I go back to work and do not have time to spend more hours on the phone with Apple so I am going to completely cancel my iCloud Drive subscription because this is a waste of time.
I cannot believe Apple got it sooooo wrong!
Cheers,
Phil