I’ve lived in 3 Canadian cities and 1 major US city. Regularly used public transit in all of them. Used transit around both Canada and the US as a tourist, plus a few locations in Europe, Australia.

For any location where I was using it for more than a week I’ve encountered something unpleasant. Various degrees and extremes, but in my experience (not OP) it certainly seems to be intrinsic to public transit.

Some of these could arguably be a net good (it’s much better that the drunk is on the bus rather than driving himself!) and I continue to prefer transit over driving myself when available, but I would never deny that it’s not always an enjoyable experience