You would be well advised to move your Qdevice to a local raspberry pi, or even a Virtualbox VM running on your desktop - as long as it's on 24/7.
Clearly you have not tested a DR situation, you don't want a Qdevice in the cloud somewhere and unreachable if things go sideways.
And as leesteken mentioned, you should seriously consider unclustering if most of your infrastructure is powered off -- cluster is designed for HA and failover. You can run stuff on separate nodes easily with backup and restore, and manage different nodes from separate tabs in the browser.