What's so "best in class" about that? I don't regard Broadcom as being particularly great.
Maybe your MacBook just has a better antenna. Or it just happens to be configured in just such a way that it works better in that one room in your house.
My HP Spectre x360 has not had a problem with the reception once, but I can barely attend video calls or load Jira with the macbook. Likewise, my wife's chromebook and my previous surface book 2 were all perfectly happy.
That said, the Dell XPS 13 was pretty close to equally bad as the macbook, though I haven't had it in a long enough time that I've since re-arranged my sitting area- whether it actually was worse or not I'm not sure.
> This is an extremely disputable claim
I don't think it is; GP couched their assertion pretty clearly as only referring to laptops that they have used. Your personal experience doesn't really change that.
This is an extremely disputable claim. Wifi chipset used by Apple is by far the best in class in my experience. I have 4 laptops - ASUS, Thinkpad, HP laptop from work and MBP 16". All of them get a visit to the special room once a week at least. If we use my commode as a benchmark of wifi radio performance, when I am sitting on it and watching Monty Python, I can get every single joke with MacBookPro 16 streaming smoothly at 320p resolution. Not so much with other products of similar class.