Using a public hotspot can add an extra layer of anonymity, and combining it with a virtual machine, Tails, and Tor certainly helps in maintaining privacy. However, it's important to remember that no system is entirely foolproof. Make sure you're also practicing good browsing habits, like avoiding suspicious links and using strong, unique passwords. Additionally, keeping your software up-to-date is crucial for patching any potential vulnerabilities. Overall, it seems like you're on the right track
, but always stay vigilant and keep up with best practices for online security.