I transitioned my roguelike game from 2D to 3D to test Sol Ultra when it was released 1.5 weeks ago.

I def can say it was a successful experiment. The game was working, but lacked a few animations I had before.
I initially used original sprites as billboards in 3D world, but then eventually swapped it with very simple models. The game transformed from a simple 2d board to a stylized 3d after I threw in a few shaders and post effects.

And of course the game again became slower to load.
So I ran the same profiling with tracy and got the faster loading in just 5 mins.
Cannot recommend it more.