Well infinito mostly expects you to use your own Poser props. infinito makes the landscape, but doesn’t come with props. you can buy the addon which gives you some content, but again it’s mostly designed around using content you already have.
Workflow in infinito is you build a terrain, then add props via the infinito plugin. it browses your poser folder and lets you pick items from there. Then you basically export that scene into daz to modify, plop a character in and render.
there are infinito videos online if you want to take a look.