I'm listening to this for the first time right now, having not heard any of the singles. I'm still in the middle of the first disc, but so far I think y'all might be underselling how different this is.
There's a clear through-line from Once to Endless Forms Most Beautiful, and even though each of those albums more or less has its own identity, by the time of EFMB there were a lot of Tuomas songwriting staples that you could call out one by one (DCoW = Storytime = SBTB, WIHAA = BBB = WF, IWMTB = MW, LRotD = Alpenglow, etc.).
So far, on this album, I'm not hearing anything that reminds me overly of something else. On the contrary, I'm hearing a lot of songs that feel very different in sound and songwriting from anything they've done previously. Which is a pleasant surprise, because after EFMB, I thought there was a solid chance that Tuomas was settling into a rut.