can I just use a regular brokerage like Schwab if I won the lottery and had 100mil to invest?

I’m a simple guy, if I won $105 million in the lottery I would probably buy a 500k-1.5 million dollar house in the suburbs of a major city in a gated community and 2-3 30k-100k dollar cars paid off. Probably a couple small things as well such as giving money to family included within that 5 million. That would leave me with over 100 million to invest. I like investing and like doing it myself, I wouldn’t want financial advisors having a say or meddling with what I’m doing.

Can I just hypothetically just put it in Schwab and put 90-95% in ETF’s and the other 5-10% in volatile stocks that I can trade and invest casually and check it on my app every now and then and just take out money normally if I need it? I was thinking if this is how minimalist tech bros do it, the ones who have successfully exited from a company for millions of dollars who just want to live a relaxed lifestyle do it? ideally I would want to have 1 residence and 2-3 cars paid off and have a couple hundred K in a bank account and live my life using a high limit credit card and then only selling stock when I need to replenish my checking accounts.