My dogs will go as far as to bark when something outside is moved also...such as pots,anything that isn't usually around. Maybe move less at one time although if it's the furniture...they should get used to this fairly quickly! My rescue keeps going back into the hallway she is used to sleeping in even though her bed is no longer there! Good luck!
It was mostly my kids things. We thought we'd be ok. We've moved stuff around and it hasn't bothered them. I even took them with me to grab a sandwich at the deli. They always give them a little piece of meat.Neither one of would take it.Not anything really off the wall, But not the same.
We're getting ready to move so we started packing boxes last night and Finn was not happy about that. He was scared of the sound of the packing tape and he'd sniff around, look anxious then lay on my feet. I can't move around with a dog on my feet so I'd tell him to get back and stay right outside the room door. He'd just lay their making little growling noises and looking confused. I almost think it would be better to crate him while we're packing, not just so he's not underfoot but so he doesn't feel anxious about what's going on.
Are yours upset by the action of moving things or by the items being set in new locations? If it's the action then maybe you could try crating. If they just don't like things out of place I would encourage them to sniff around, give praise and help them adjust to the new arrangement.
As herders and flock guarders, Corgis are meant to alert you to anything "different" and then leave it up to you to figure out if "different' is "bad." Jack gets very upset if we do stuff that he does not understand (stringing lights on the Christmas tree, for example). He'll come and try to jump by me or crawl in my lap (and he's not a lap dog). Frequently if I just talk to him normally and encourage him to sniff the thing that's different, it helps. Perhaps leash them and walk them by the new arrangements, and just talk in an upbeat way then engage them in a game they like? Really frequently they are just looking for a sign that everything is still ok.