If your back wheel was bent from the bike being hung on it…then I’m sure there must have been some other pressure acting upon in a lateral direction it to cause it to bend. Like others have indicated above…most every part of the bike is designed to accommodate the weight of riders of more than 200 lbs. So you can hang it from just about anything. Just watch of for lateral pressure. Although hanging it from the brake/shifting cables probably not a good idea. Nor would I hang it from the brake/brifter levers, and individual spoke(s), nor any other attached component like fenders or panniers, derailleur, etc. Hanging it from the chain would probably even be OK…but just a little weird.
Dan