I think most Linux distros will be fine. As of today desktop marketshare is still small, the governments mostly work within custom business applications. And to this date Linux malware and viruses for the desktop are practically unheard of. The common attacks are against the browsers, not the underlying operating system (so do timely updates and install an adblocker) or we'd expect phishing or phone scams and that's against the human in front of the computer, again not the operating system. That makes me say they're about all alright. Of course they're not all equal. Immutable distros and sandboxing will help here. But the real deal is other countermeasures, like be aware how phishing works and try not to mix online banking and pirating games from shady websites. That belongs on separate user accounts or even installed operating systems. And use password managers, 2 factor authentication and these things. (And don't use Edge, or some browser from some random third-party repository.)