Honestly, 100 mil or even 50 mil is more than enough for any human to live a carefree life, without the need to work ever again and without any material want or need.

I did the math; I'm in my early 40s and I'm pretty sure I could retire comfortably literally right now with around 2.5 million and just subsist on the interest and or investments on that for the rest of my life.

100 or 50 million would just be utterly excessive for any actual needs and the majority of possible wants.