Guitars and bikes are practically mandatory in #minimal shots, are these not hobbies? Gym memberships for lifting take no space. Climbing shoes take almost no space. Music production? Programming? Digital art?
Climbers have all kinds of equipment. Music production requires recording and sound absorbing gear, and also playback. Programmers used to have plenty of books and extra computers - nowadays will almost certainly have Arduinos and Raspberry Pis around (and gaming gear). I don't know much about digital art, but I strongly suspect most of their practitioners also practice the non-digital real works counterparts.
All you need for climbing is some shoes and a chalk bag. Possibly a crash pad. You're a hobbyist, and even pros (see: Alex Honnold, or anyone that primarily does bouldering) can climb with only that.
All you need to make music is some software, a playback device, and possibly a microphone (purely electronic music is a thing, of course). It's a hobby, you're not a professional producer.
Don't needlessly raise the barrier to entry.
Because maybe your style is best complimented by a Strat running through a Big Muff Pi into a Fender Twin?
And then there's the tuner, cables, guitar stand, cleaning & care products, a good case, a toolkit for making adjustments, maybe a few other pedals, some chord books or tuitional material.
And of course, most serious players will have more than one instrument anyway...
And as you enter your 40's you'll need a Telecaster too.
Also odds are good you'll be in a music store at some point and play a Music Man or high-end Jackson or Charvel for the first time and realize one of those are a necessity too.
This is if you're a strict minimalist.
Caught me off guard, still laughing :)