Earlier quoted context omitted.
OP wrote that they could be fired on the spot, they're not in the land of generous voluntary redundancy packages.
No they didn't, they wrote that they want to quit, and other people are being let go. The organisation's looking for people to cut, which if you want to quit anyway is lucky - it suggest VR may be accepted (or it may be involuntary anyway if you wait).
> Do you think there is anything to gain by being transparent with my boss about my intent to leave? I could be fired on the spot, but that doesn't leave me much worse off if I just quit