Like "St George" I'm in the UK
I was a JW from 1971 -2001.
In that time never came across probably 95% of rules that have been mentioned.
Never came across any congregation where it was white shirts only.
In fact in all the years I was a JW I never wore a white shirt, even for public talks.
The no beards thing, I think was the only one that was common.
Yet even then I have met brothers who had beards.
I recall going to an Elders/Min Servant school one year,
and two Elders, not young guys either, from North Scotland both had full beards.
It certainly stirred things up amongst the other brothers.
Over time I've noticed that the majority of these "rules" seem to be American congregations.
Many at the whim of local Elders.