Have about 200 hours of Valheim logged with my wife. I'm honestly feeling burned out, but she's still into it, so I'm trying my best to remain interested. I love this game, but we've been playing of so much.
Don't remember how far I got, maybe 2/3 of the biomes, then I burned out and got bored. That was a while back, and flattening the land was really glitchy. I'd have an area perfectly flattened and ready to commence building, save it all down, come back next day, and it'd all gone to shit again. I got sick of trying. It became more of a grind just to get back to my last save point than I wanted, and gave up on it.