I am no expert but ALL of my floribundas make shrubs and I let them grow inward as well. I do watch them, but I have some HUGE bushes going now that grow all which ways. I was under the impression that only Hybrid Teas needed to be watched for outward facing buds and even that I slack on to keep a full, healthy looking plant, but I do things that work for me and usually they go against what everyone else suggests. Here is my Hot Cocoa and my Sexy Rexy (which has tripled in size this year over last and needed a bigger pot) taken this morning, for reference:

It is too late to prune now. Dead head them, but wait until next spring to prune. However, if they get out of hand, that is, throw long canes all over the place, you may cut them back 1/3 with no harm done. Pruning is, however, a springtime activity. Since I don't know your pruning time, the best general rule would be to prune when the forsythia is blooming.

ash, in our zone you don't have to do much protecting. But don't cut them back now, they are not dormant yet and will start to grow and could be damaged by a hard frost. Wait until we get a very hard frost and temps are consistently low at night and not too warm during the day, probably the beginning of December. Then cut back by 1/2, just to keep the canes from blowing around in winter storms. Sometime in February, you can do your spring pruning. My roses are still blooming, believe it or not.

I'm not at all sure there is a definitive resource on wisteria.....a good many horticulturists specializing in this plant are of the opinion that many common cultivars are in fact hybrids of sinensis and floribunda and are designated as x formosa. Apparently these two species will hybridize quite readily and the distinctions of the hybrids compared to the species are very slight, at least to the non-specialized or untrained eye. One can find various cultivars listed as either sinensis, floribunda or x formosa, depending on who is doing the classifying. Regardless, root pruning can't hurt and is often recommended to encourage a recalcitrant vine into blooming. I've encountered a lot of mature wisteria vines over the years and only one produced any significant shooting, so while possible, I'd have to say it is not very probable. IME, the thuggishness associated with wisteria in our area is due to its extremely rapid growth in season and the fact that it produces such a heavy structure and top growth that easily swamps or uproots too small support systems.