looking to create a 2.5D game in Godot, is it best to use a 2D or 3D scene?

still very much in the pre-dev stage but me and some friends want to create a 2.5D game inspired by Inside, Hades and Replaced and the like, parallax side-scroller vibes etc etc... i was thinking it would be great to have the playable MC as a 3D model and backgrounds in 2D with maybe a few central objects 3D modeled.

all that said, i wanted to ask, does it make more sense to make the project based in 2D or 3D?

our choice of game engine is as mentioned Godot atm, but if you have strict objections to it i am also considering Unity since i have experience in it. not considering Unreal at all though.

let me know if any part of my question doesn't make sense, would appreciate any and all help! thanks!