@iamsweetmystery Hi! I agree with you about the interruptions. It would be better if we had an option to turn these off. Maybe we could get an option to "disable decor reactions"? At any rate, I never give my sims decor likes or dislikes for this reason. Same as @simsplayer818 , if ever I notice them interrupting actions to "judge decor", I immediately use the simology panel to enter CAS and remove the likes/dislikes for decor. I know this isn't what you're asking for but perhaps a workaround?
Also, you're right about the potential for ruining lots and sims by removing DLC when you've used items from them. However, you definitely can remove them on PS4. To do so, you would have to uninstall the full game, then install the the base game again and only the packs you want, leaving the other DLC uninstalled in your Game Library. If you ever wanted to test what happens when you remove DLC like this, perhaps you could first make copies of your save files on a thumb drive to preserve them. Once you see what happens and, if it's really bad, you could then reinstall everything and load your saves back as if nothing ever happened. It sounds a bit tedious but just a thought and possibly another workaround.
Edit: Oops! Looks like we were replying at the same time so I didn't see your reply to simsplayer818 til after I posted.