Just sharing a short list of worship projection apps that I've used that work really well in our church. There are many others out there that I haven't tried, so if you have one that you use, share in a reply so others can see it. All of these can pretty much do similar things (lyrics, videos, presentations, etc).

FreeWorship (https://www.freeworship.org.uk/)
This is the one our church currently uses, and it works best for us, but the others work really well too.

OpenLP (https://openlp.org/)

Quelea (http://quelea.org/)