I'd advise OP to strategize smartly, given they have enough money to last a simple and full life, save, invest, donate, and keep the transactions small; ie. not investing or donating all or a majority of wealth into one thing, instead of a little bit here and a little bit there, every now and then, gradually and slowly.
Taking it slower itself is a form of constraint. And together with keeping relationships and connections, minimizing the noise in life, and making it simpler towards enjoying the truer pleasures of their life, they can grow richer and live more luxuriously, not just in terms of wealth, but also in a safer, more secure and a cozier human experience.