This setup seems to be missing IPv6 support (hello significantly worse performance due to CGNAT on all mobile devices!) and you get harsh CPU & I/O throttling from Amazon.

If your going to use a VPS (which is what Lightsail is), go with companies that focus on that as their core offering. You'll generally get more features and higher limits at a lower price point. As an example: https://www.lowendtalk.com/discussion/151580/impact-vps-nvme...