I'm not an "extreme" minimalist, but I do adhere to a minimalist approach. I don't have any ornamentation, bric-a-brac, or sentimental stuff around my home as I see it as nothing but a pointless dust-trap. I don't have decorations, adornments, pictures, photos, or clocks on the walls for the same reason. I can tell you right now precisely how many of each item of cutlery I have in the cutlery tray, likewise with how many items of underwear I own.
I do not keep things that have no practical use, I don't "collect" anything (although I used to in the past and it triggers compulsive behaviour), and despite having a large loft above my flat, it's entirely empty apart from the water tank.
I just can't abide anything I consider clutter, so I refuse to give it space in the first place. I couldn't imagine having to search my home for an item or not knowing where something is at any given moment, so I don't ever allow a situation to occur where this is a possibility.
My partner is the total opposite. ADHD, so their home environment is absolute chaos. Funnily enough, it doesn't bother me because it isn't my home and my living space, but when I am there I do sometimes have to move cables and so on before I can sit down comfortably otherwise I'd be shifting nervously and pacing about all day.
I have never been sentimental, and I don't understand why some people appear to believe the accumulation of material items is indicative of personal success, so I feel no compulsion whatsoever to fill my home with this and that. I lived without a TV set for about five years, and only actually bought one when I moved home so that if my partner was over they could watch their shows and movies. It hasn't been switched on in the past month+ and I barely ever look at the thing. To me, a home needs to be comfortable and relaxing, and in order for me to feel comfortable and relaxed, it needs to be organised, clean, floors clear or obstructions, and simple to maintain, hence why I don't accumulate tat. It's one of the reasons I always knew I never wanted children, I couldn't abide the mess and disruption, and it's why I know I will never share my home with another adult again.