I’ve already said before what i would do if i won that type of money.
Tell NOBODY at first. Not even wife/girlfriend
I’d find a reputable financial advisor, someone with a history of working with people who’ve never (at least publicly) had any financial problems like Denzel, Lebron, Kevin Durant, Serena Williams, etc. ( all of that info is googable)
I’d buy my mother a house, NOT a mansion, but a nice house and a car and set her up with a stipend of $3.5k a month for spending and leisure. She’d effectively be retired.
Each one of my siblings would get a ONE TIME gift payment of $65k. One time and one time ONLY.
My two best friends who have been like brothers to me all of my life would each get a ONE TIME gift payment of $50K each.
I’d put $2 Million into a special account for my daughter that she can only access after she turns 25 and has either completed a bachelor’s degree or started her own business thats been running for 4 years.
After that i’m moving to Ghana and going ghost. No one would have any direct contact link to me except my daughter, who i’d make sure to frequently visit and one of my best friends, who i’d ask to check in periodically on my mother. Everybody else be damned.