Since you already received the requisite comments about drinking above, I will just answer your specific question.
I was sleeved, and was told no alcohol for the first month. Beyond that, was told to determine on my own what I can handle, but the general recommendation was to try to abstain.
With that said, here is MY timeline:
3 weeks post op: 2-3 sips of red wine (felt weird, thought I could feel the warmth going down my intestines). Also I remember being affected by it. Not drunk or even tipsy...but something.
2-ish months post op: ~1 fl oz of soju-sake (got terribly sick within 15 or so minutes, spent the next few hours suffering : rapid heart rate/barf/diarrhea/lethargy/passed out...it was the sugar, dammit).
3-7 months post op: probably had 4-5 (partial) drinks of either red wine or vodka soda the entire time (got tipsy really fast, got sober equally fast).
8 months to present : drank more (mostly due to the fact that I was done with weight loss phase). Maybe 1-2 times a week at first (and sometimes none at all), then Covid came around, and since about may-june last year, I drink almost every day. I still get tipsy and sober pretty quickly....not as drastic as in the early months, but still. Generally, I can feel the effects by 1/2 the glass, and if I finish the whole thing, I will be completely normal again within 1-1.5 hours.
So take this as validation, justification, or as a cautionary tale. You decide.
P.S. note that the effects will be different for everyone...I am pretty small (5'2", 110 lbs), so this definitely influences how I am affected. @The Greater Fool's suggestion to try it out in a safe place first is a good one.