I rarely go on the road club runs as, frankly, I find the group discipline and lack of awareness of other road users utterly embarrassing.
I think it’s the same within any club, TBH. In ours, some groups are very strict, with an expectation of good quality group riding, whereas others are very relaxed indeed, with a club run consisting of small groups of riders scattered over half a mile of road. Personally, I just pick the group that suits my needs (faster end, strict group discipline) and ignore the rest even though a little part of me cringes when I see them out and about!