Worse in some ways, better in others. Hard to say until you're in the situation.
Winning the lotto sounds great, but is almost always a massive nightmare for people. I get along well with all of my family and were I to win a ton of money I'd like to help them all out, same for putting my money to work for some kind of cause since I'd have some real means to help out, but that can go sideways real fast too. You'll have all kinds of people coming out the woodwork asking for money, harassing, and even threatening you. That can change anyone. But at the same time I'd like to think I'd keep a level head about things knowing it's not really people at fault but the system that puts people in a position where they are desperate for money to meet their basic needs, and/or a culture that has people feeling like they have to keep up appearance and certain standards of living that just aren't realistic.
In terms of my overall lifestyle and attitude about money I don't see that changing much. I'd retire immediately, but I don't much care for conspicuous wealth and extravagance, I hate cars, and most fancy shit. Having more expensive things doesn't mean anything or make you better. I'd travel a shit ton more but again nothing crazy fancy, beyond that I would spend all my time at my home just enjoying myself and whatever hobbies and interests that pop up. No social media already, so that wouldn't change or have me trying to gain clout. Only way I'd get rich is probably through something like the lotto and not through something like becoming some big influencer, selling a book, or product of some kind that would require me to employ or interact with people differently than I do now and put on some kind of front or personality to maintain my success/appearance.
If I won big I think I would basically spend a bunch up front setting myself up. A nice home I can stay in for life. Maybe a vacation home or apartment somewhere. Budget out my living expenses for the next 50-60 years for taxes, upkeep, travel, health, retirement, and save/invest whatever I need for that and then everything that's left over give to family, charity, and dump into some passion project of mine. Put the money to work to create something rather than just sitting away in the bank or some investment portfolio making me feel good.
But that's all like ultra wealthy, hitting that hundreds of millions or billion jackpot kind of rich. That's the kind of ultra wealthy where you're truly set for life multiples time over. But say if I just won like 5-10 million or whatever that's life changing for sure, but you're also a lot more limited in what you can do beyond just retiring early. A few bad investments and lifestyle choices and that can disappear real fast. A nice home will take out a good chunk of that and if you want to retire and never work again for the next 35-40 years or more that's going to eat through a lot of that money, even with interest. Especially if you have kids and it's not just your and a partner. Having family, friends, and strangers coming up to you for financial help is going to hit a lot different than if you have many 10s or hundreds of millions in the bank.