So weird to me anyone actually refutes this effect.

I lost weight for two reasons. First was for health, second was for career/being taking seriously in certain social circles (aka networking).

I also went through one of the least confident periods of my life for unrelated reasons right about the time I hit my target goal weight. Debilitating so.

I still got treated better, even when I was barely able to engage in a social interaction. From subtle things I noticed, up towards things that were quite literally spoken out loud and explicit. Just small interactions were less full of friction and low-stakes requests such as solving a problem with a pharmacist tech just seemingly got easier somehow.

And I'm a dude. The impact for women has to be multiples larger.