Hi Hoborg.
In answer to your question, I used to use saf, but now use lav only.
I switched from saf bc I never encounter the less common video codecs anymore. Everything is h264 or h265 with aac/dts/dolby/ac3 and their derivatives. As a result i don't need all the great features of saf.
I still recommend saf to people if they don't get joy from the default lav setup!
In answer to your question, I used to use saf, but now use lav only.
I switched from saf bc I never encounter the less common video codecs anymore. Everything is h264 or h265 with aac/dts/dolby/ac3 and their derivatives. As a result i don't need all the great features of saf.
I still recommend saf to people if they don't get joy from the default lav setup!