> If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.
If you receive a GPLv3 licensed application from someone else who tried to add additional restrictions, then you can just ignore them, sure. However, this comes straight from the author, so what you actually get here are two conflicting rules given by the copyright holder. I'm afraid this can not be considered free unless a relevant jurisdiction's court judges otherwise.
If it was about two licenses, it wouldn't be a big deal (aside of being a pile of harmful bullshit, of course). But it's not - it's a single license with conflicting terms. A license is supposed to give the user an assurance of ability to use and/or distribute the software as long as they obey the stated rules, so if you get conflicting rules, such assurance is essentially useless.
The author seems to be some kind of weirdo, fantasizing about "totalitarianism" while meaning reasonable Covid measures. The addendum about this renders the software non-free.
I wouldn't trust this software, as much as I wouldn't trust software from QAnon, Putin or North Korea.
