Simple selections: Subject Selection
Here's another newish feature (Elements 2020). It's called Subject Selection and is the simplest and easiest process you could imagine for doing exactly what it claims: selecting a subject. Here's how it works.

Step one: Choose your image, then open it in Expert mode. Go to Select>Subject (Alt/Opt + Ctrl/Cmd + S) and sit back for five seconds to see the subject selected. Wham! It just happens—driven by Adobe Sensei (Sensei means teacher in Japanese), you'll get a pre-selected subject. I tried this with several picture examples where the subject stood out against the background. This AI-driven feature did the job pretty well—with about a 90-95% accuracy (around the "subject").
Not bad considering I did nothing to the images other than open the files then try the selection process. Yes, it is a selection tool "dumbed down"—there's no choosing...