As someone who’s grown up in the Midwest, Menards used to be just a hardware store/lumber yard but in the last 15-20 years really has branched out to more than just a hardware store. Hence the home goods, pet supplies, clothing, groceries, appliances, etc in addition to the hardware store/lumber yard bit. In some ways it’s a lot more like Fleet Farm than it is like Home Depot, though Menard’s doesn’t have the farming supplies and tractor parts and stuff like that which can be found at a Fleet Farm.
Since they made this change, the newer and remodeled stores are the ones with the multiple floors since they need all the floor space. But I remember some of the original and smaller stores were also multiple floors (electrical was typically upstairs), but those might be all gone by now. The one we went to when I was a kid wouldn’t be anyway close to being ADA compliant today. That store moved locations and the old building is long gone now.
It’s also an edition thing. The Home version is the worst, the Pro version is much the same, but the corporate Enterprise version cuts out a lot of the crap.