We've been using OpenLP for years. The big benefit for our small AV team is that we've loaded our full hymnary into the songs database. So with all of the hymns there and the bible version we use available, it only take a couple of minutes to create a new service (at home on my Mac) and put it in Dropbox for whoever is managing things on Sunday.
We also stream, using OBS Studio, two old iPhones with Droidcam and a third Zoomcorp camera that also picks up sound. Of course, we take most audio from our mixer.
Everything is integrated using AutoHotKey, which drives OpenLP via its API and OBS via its websocket. AHK also connects to our mixer API.