I enjoy it, but it's not really an essential instalment to the franchise. I disagree about it looking good; its an improvement over Black Ops: Cold War, but doesn't look much better than 2019's Modern Warfare. I've not seen many hackers and I've got the ability to play the game full-time, so I'm either incredibly lucky or incredibly naive. I've not yet played the campaign, but I can see myself having an OK time with it, but nothing more.
And that's Vanguard in a nutshell: it's OK. If you absolutely need your CoD fix and you're bored to the back teeth with previous installment, it's fine. Adequate. Suitable. But it's neither great nor terrible.