Is this resource guarding?

So, I wish I had a video of this so accurately show yall what I’m talking about but my 6 (7 tomorrow) month old golden puppy loves cuddling on the couch since I’ve started to let her on it. I don’t let her on the couch by herself just so I can supervise her to make sure she doesn’t try chewing on it, but she does pretty well so far. My problem is, I’ll let her cuddle on the couch just before her nap time in her crate. When I go to guide her off the couch she’ll give me a grumble and push back on me but then she’ll let me guide her off the couch. There’s no teeth being bared, no biting, or whale eyes. I’m just confused whether it’s the start of resource guarding or if she’s just being mouthy as she likes to grumble about everything lol