Wow, I'm pretty glad I don't come here much anymore. You are a Level 7 and acting like a 7 year old.
OP was clear enough. Yes, he did not mention the different wall units he was using but, from his description, he didn't need to — the title says it all: "iPhone not charging after ios 18.1.1 update.” My iPhone XS (not a new one, but not dead either) has a similar issue that seems to be related to the wattage of the charging "brick" (G4 Cube reference); a lower wattage rating will not charge, while my iMac port and my iPad Pro's large brick works fine.
What concerns me is the lack of courtesy exhibited in your response; you sound like you were a Microsoft PC owner talking down to a mac owner back in the days of my G4 Cube. If you are a crossover then upgrade your level of behavior; you're acting like a child with a better toy, lording it over your lessers.
How far the mighty “Discussions” have fallen. 20 years ago I would not be the only person jumping on this rudeness. If you have to preface a statement with “I’m not trying to be rude or flippant,” that is likely to be exactly what you are doing, and the preface just indicates that you’re aware of it.