The opposite issue exists in men's clothing - it seems to be harder to find clothes that fit shorter/smaller men. "Medium" sizes tend to be quite large.
Don't get me started on torso lengths! I'm 5'11 but wear a 30" inseam pants. My torso is long, so most shirts are too short for me. I'm not overweight, I'm 160 lbs, so finding a shirt that actually fits me is very difficult. If it's long enough, its too wide. If its the right width, it's too short.
I have the exact same problem. 6'0 (183.5 cm) height, 160lbs (72kgs), and a long torso. Mediums and even smalls are ideal for my shoulders and chest but it's a crapshoot if they will keep my belly button covered through a normal range of motion. I don't want to bare it and can't imagine anyone wants to see it.
Tentrees, Fox and Prana are the brands I've found that consistently fit my upper body.
I made a page about this myself - Model is 6'2" Wearing Size Medium - https://pilk.website/2/model-is-6-2-wearing-size-medium