She'd be "fucking hell finally I get something out of this endless suffering". Here she joined a company, waited a bit, and became a millionaire. We may all feel a bit disappointed at winning life with so little excitement :D
I can imagine this feeling of not deserving the money, but that doesn't mean you should be hellbent on giving it away.
Now 6 mil sounds like a lot (it is). But it is also easy to get in a habit of 'not worrying about money'. It sounds like she is setting herself up for that too (the cheese thing). It is ok to splurge but doing it every time and you will quickly find that money depleting. One lady I know got 15,000. In her social circles that was life changing. Along the lines of not worrying about many bills for a few years. It was gone in 3 weeks. I also feel that ladies assessment of wealth managers. Many are fairly weak at it.
My advice to the young new millionaire. Do nothing yet. Finding people to help manage your new burden is going to take time. Also watch out for the richer sharks. Many of them realized the best place to get money is from the newly rich with schemes of investing. Many investment advisors seem really fixated on what % of your money they are going to get per year. All the while telling you how they will grow it. Then drop you into index funds (that they get a kickback on). You could also think 'i know i will donate it' well that is an option. But take the time and evaluate them like the wealth management people. You will find the same people there. Ask around wait and see, do not let the money burn a hole in your pocket, evaluate. The best way to grow your own wealth and help out is to build things. Start a business. Maybe become a landlord that specializes in low income? Help create jobs in that segment? Instead of dumping it into some wealth management fund who is trying to build yet another 5k per unit per month condo building. Creating jobs and helping people level up is the best thing you can do with your money social wise. Giving it to someone else and hoping they get it right may or may not work.
I worry so much about the world my kids are going to grow up them, that I am trying to give them as much of a financial head start as possible. I don't want them to have to suffer through discrimination because of their skin colour or gender, or having to bow to the office politics of the day.
As for donating money, why not wait until you die, and donate what is left (and your family can spare). Why the rush? Even the 6 million dollars that hypothetical woman has may amount to not much, with the crazy amount of money printing and inflating costs for housing.