I did that, fifteen years ago after 25 years in the civil service. It was a good package and I'd do it again.
The good
The job had become tedious, with few development prospects. I'd learned new infinitely transferable skills and left with great memories, lasting friends.
Since then I've had opportunities and experiences I'd never have had if I'd stayed. My CV looks amazing ...
The bad
I'd never had to apply for a job since uni and I didn't have the first inkling of how to begin to think about trying to do it. Not a clue. And meanwhile the internet had happened and I was mystified. Because my employer had failed to give us one second of support and training how to survive out here.
If there is outplacement training available - grab it.
Polish your cv with all the keywords relevant to your profession and role you want.
Polish and use your linkedin to leverage your network - that's where the jobs are, not on the job sites.
And the ugly ...
Not only was I redundant, and unemployed, I was also peri menopausal, and I crashed. I was grieving the end of something that had been half my life, no longer able to describe myself in my accustomed terms. Who and what even was I. Everything had changed.
Yes, I had a cushion of cash. But a big chunk went on credit card debt and I just wallowed in the rest until one day I realised ... It's nearly all gone.
Because I'd failed to be prudent and to plan and set goals.
I had a huge piece of luck when a recruiter found me online and I got a six month contract where I reinvented myself and I'll always be thankful to him. That's happened three times since then. So make yourself VISIBLE.
I started my own business too - I highly recommend EVERYONE do that (the tax expenses, the extra personal development, contacts, extra income). Seriously, do it. You can be an employee AND self employed at the same time.
I had a brilliant 18 months contract that ended a year ago. I did a £5K month once during that, too.
Today, I'm having difficulty paying my mortgage.
It's very very difficult out here. Brilliant people on LinkedIn are shaken by how hard it is currently to get a new role.
Ageism is rife. Be strategic how you compose your CV etc if you're over 40.
Keep your wits about you. That money will flood out of your hands. Start looking for a new job NOW - the practice of applying and interviewing will be valuable. Be aware of your mental, emotional and physical state and be kind to yourself if you do go ahead.
All the best.