No 'infinity' setting on Pixel2 camera app

I just hunted for one with no success.  Surely this would be a basic thing when you want to take a fast shot without the camera taking time to focus.  Like fireworks, for example.  Most of my fireworks shots were garbage, either out of focus or taken a fractional second after I clicked.
I've tried several other apps, but they all seem wanting in one way or another and I just got tired of testing, which is why I'm still using the native one.
Anybody got a favorite?
--
Cheers, Bev
   "I love this country...
   ...and the freedoms we used to have..."
                      --George Carlin