Q1 Yes, it works
Q2 Nothing special for multiple machines, other than knowing that
a) if you update the same file on two different machines, odrive will try to sync both and you may wind up with two copies in the cloud, with at least one marked as a conflict (varies by provider)
b) if you DELETE a file or it’s placeholder on ANY of the machines the file moves to odrive trash, which is just a hidden cloud folder. You can still get it back. If you empty the odrive trash from client, then the file is really gone (except that some cloud providers never ever really delete anything).