How does redundancy work?

Currently in the consultation period after being flagged as at-risk for redundancy- I am honestly happy with the severance and would rather sign it and announce I’m leaving than try to find a new role within the company, but I’ve never been in this position and am not sure how to navigate it. Is it seen as odd to just say “I’ll take the severance and my last day will be (end of consultation period)”? Do I have to do this whole thing of trying to find a new team to not seem nonchalant and be entitled to my payments? Thanks.