Google Drive has no differential sync. Any changes you make re-upload the whole file. This is a hard no for me. Also Google.
I moved to Sync[0]. The pricing tier was more what I wanted (500GB). They support symlinks, differential syncing, selective sync as well as a 'Vault' for storing files in the cloud but not on your machine. I think it's end-to-end encrypted as well, not going to commit to saying anything specific in that regard. The Mac app is also a lot better, I find it spinning up a lot less for me and its a lot lighter in general. To be fair though, even with iCloud I get my fans whirring up when I start uploading lots of changes.
I've also heard good things about pCloud[1] but I don't see any reason to change my workflow now after have to already change it.
[0] - https://www.sync.com/ [1] - https://www.pcloud.com/