For me it’s leaning more to sandbox.
I love the build aspect and recreating houses from TV shows and then having Sims use them.
So that’s why I feel it more sandbox.
If it were more life simulation then I’d expect Sims to walk to work by going to the edge of the screen and fading like in Sims 2. It’s very jarring to have them teleport outside their house.
There’s still no cars, taxis or buses.
Whilst I wasn’t expecting an open world, l thought loading screens to the house next door disappointing. I’d love my Sims to be able to pop in to their neighbours for a chat etc.