Do you feel different when drinking depending on your environment?

I don't drink alone at home. If I were to drinkl in a private place, like at home or friend's home, I'd get as drunk as I'd get in a pub (sometimes more).
But drinking alone just seems wrong, it feels wrong. It destorys the point of drinking.

This question has never applied to me.

Drinking alone is different to drinking in company. When in company, you have to try and be social with people who are either more drunk than you are or less drunk, and the need to do this means you keep a kind of sobriety in reserve. You're always aware you are in public and a sober friend may turn up at any moment (and you don't want to look like a dick). My group always thought that talking and being engaged kept you more sober, but I think it was just self-preservation that did it.

In short, if you're drunk enough to be embarrassed about it, then you're probably drinking too much anyway, whether it's at home or out and about.

way too take the whole element of fun out of drinking

I drink (beer & wine & sometimes rum), but never enough to get drunk. I used to get wasted when I was 19-20 years old, but it was a phase. I'm not a fan of hangovers or gut-rot.