https://www.forbes.com/sites/kashmirhill/2014/11/07/how-did-law-enforcement-break-tor/
FBI kept information to themselves of how they did it and this isn't the first time.
Also I wouldn't trust accessing a site administered by the government on Tor if onion sites can't keep me anonymous.
Several VPNs claim they don't keep logs. I trust Mullvad. Mullvad got raided. The police found nothing.
I trust a trusted VPN over a technology created by the government and that has frequently been broken by them.
Compare the amount of arrest of Mullvad users versus Tor users, logically for me at least, I found my answer. If you trust Tor to access government websites illegally, I say go ahead. I wouldn't.