My kid drooled in front of Peppa (until she decides she doesn't like it after all). The engagement was at the level of YouTube Kids movies from "creators" - which means kid is unresponsive, clearly doesn't process what's going on, wants more of it like, an addict.
I had to cut off YouTube kids aggressively and my kid still wanted those idiotic movies even after a few months.
Peppa had similar effect, but my kid resigned on it's own. They show is just dumb. Teaches nothing. Unless you value things like feeding ducks with bread and cake is good, destroying countryside camping spot with heavy equipment and concrete is fine just because you dropped keys in a hole etc..
Peppa games are also really bad - not clear when you can actually engage, what can be done, instructions are unclear or wrong, plus the is no goal at all.