What I see is that brothers and sisters don't preach as enthusiastically as before.
I can't remember the last time they knocked at my door. I recall 10 or 15 years ago that we invited to have coffee to brothers when preaching in the neighbourhood.
When I visit my mother's congregation where I grew up, I see the same brothers that have been there for years.
They're always speaking about the importance of preaching at WhatsApp groups but none of them are really preaching. Many are walking during weekend mornings, having breakfast until they get their 2 or 3 hours to report but that's not the way to convert someone.
Not to speak about carts! At first they were all volunteering and now they have problems to find brothers.