Hello.
This is by design. 🙂
So first off, I've been playing The Sims 4 for a while. I only recently noticed the messages on my loading screen. I know that Strangerville causes... odd messages to pop up but I do not own Strangerville. The most common message is just the word 'ok.' Another common one is 'I do not want free earbuds.' I also do not own the DLC with earbuds (not sure of the name). I have a few mods in my game, but most are minor gameplay tweaks and CC. Is anyone else having this issue? My game still runs fine and everything, I'm just a little bit confused.
The OK one, which I have screenshot and have as my desktop background, is to do with the random/generalised OK answer that sims can give to the text messages and calls they receive.
