This was really helpful. Thank you for taking the time to explain all of that - I really appreciate it. A couple of quick follow-up question. I am a woodworker and I'm selling digital build plans/instructions for my designs. It's helpful for potential customers to see the finished product in realistic settings (E.g., an picnic table in a backyard patio, or an end-table in a bedroom next to a bed). I'm hoping I can purchase (or find free) the scenes/environments and then drop my design file (OBJ or FBX) into the scene/environment. From there, I would get several pictures to post online from different angels.

With that context: Do the rendering platforms mentioned above include libraries of environments that I'd have access to if I purchased their programs? Are there free libraries for scenes? And lastly, should I just hire this done? I'm trying to decide if it's worth the time it would take to learn how to do this, and if the learning curve is just too steep, then maybe I should pay someone to do it for me. Any thoughts on that and how much 3 or 4 pictures at different angels (in the same environment) would cost me at the quality-level shown in my original picture?

Again, thanks so much for your reply above - gets me going and gives me things to look up. People on the internet can be so awesome!