Of course first into a bank, a few million in crypto, another few million in ETF, another few million to actual brokers. Then it's time to start buying up property and renting it out at a fair rate - it's not like I don't have money invested elsewhere. All this to diversify investments.
Gotta buy my entire family houses too, so that they don't have to be wage slaves anymore. I should be left with... 50M or more?
Now the fun part starts: investing in opensource. I'd spend my time making a team to find "critical" places to invest in. Stuff where there's just little to no competition or the market is dominated by big players. Identify opensource projects that could challenge that dominance and see if groups would want to work on it full time, be it development, marketing, hardware costs, security audits, etc.
And of course travel and do lots of drugs.