https://www.blackdown.org/linux-tails-review/ “Keep in mind that the official website of Linux Tails has all the necessary instructions and documentation on how to use this operating system. We advise you to check out the warnings so that you are aware when the OS won’t protect you. ”
https://www.g2.com/products/tails/reviews “VPN is not supported but sometimes customers have to use VPN. ”
https://blokt.com/guides/tails-os “Tails connects to the hardware of a computer but doesn’t use the operating system or disk drives. That means there is no permanent record of your activities on that computer. Once you remove the Tails USB Stick or DVD and restart the computer, there will be no way to tell Tails was used there.”
https://tails.boum.org/doc/about/warnings/tor/index.en.html “Adversaries watching both ends of a Tor circuit could identify users.” “End-to-end correlation attacks have been studied in research papers, but we don't know of any actual use to deanonymize Tor users.”
Parrot Security is another highly rated product.