Well, this is a subject known well in my family. My wife is true German. Her father was a beer brewer his entire life. Her step father was a major sales rep for a German brewery. I will never forget taking stepfather, Herbert, into an American establishment where they served the beer with a frosted mug. He would not even taste it as he stated you could not taste it. We may be used to ice cold beer. But to truly taste we must have aroma released just as in a fine wine. No attempt here to change anyone's mind. I will leave a few American references for educational purposes only. I have learned that different beers truly have different flavors at different temps. Still, I won't forget drinking ice cold salted beer deer hunting successfully at about 100 degree temps in Calif a zone. At the time I would have sworn it was perfect.
https://www.foodandwine.com/news/best-beer-temperaturehttps://www.homebrewersassociation.org/how-to-brew/proper-beer-serving-temperatures/====
I have found in life there are times when what we "think" we know is different than the actual facts. This is one of those. I have beer sitting on my basement floor at this time and has been a while since I drank any beer ice cold. At first I resisted but found there really was a difference in taste. To be honest, if we are talking ab out crap beer they are crap cold or slightly less cold. But good beer - yea, this is a real difference.
For those than just will not believe. Take a very expensive red wine, chill it to about 35 degrees, and then wonder why I paid so much for this ........
I paid my way through undergraduate school as a vineyard master. To this day I prefer a really good beer to most wine. Honestly, I think it is the early childhood memories of successful hunting ending followed by ice cold cheap beer. We each have our own wants, needs, and memories. This is part of mine.