People don't want foldables as thick as two full phones. Both sides of the foldable need to be thinner than any part of normal phone thickness, and phones these days are already incredibly thin.
Honor magic V3 has a larger battery while still being 24% thinner than the fold 6. Granted its using new battery tech. Still, samsung should do something or be outpaced by others.
Personally, I don't get why they're selling these super thin foldables if they can't make a battery that supports them for very long.
Because, they can and people buy it anyway. ¯\_(ツ)_/¯
Then again, my current daily driver is down to about 1800mAh and it's still doing fine during the work day.
Given that HONOR is Chinese, they must have cut corners elsewhere. It is entirely impossible that Samsung, the second largest technology company in the world and the most advanced consumer electronics manufacturer, seated in South Korea, is beaten by a Chinese company.