My favorite solution for cargo transport is loud as well, trains aren’t exactly known for their silent behaviour. Difficult to find the best solution there.
Regarding the topic: I don’t seem to be that off with my feeling, according to this site 50 % of the noise of a car comes from tires. And it gets worse at higher speeds and with more mass. I think EVs are more silent than ICEs but still far from good if they can be avoided by better solutions like bikes, public transport and city planning.
Of course I wouldn’t want to take away your sleeping aid, a nice constant white noise of tires can be nice. But maybe a white noise recording would be better for the environment.