I once came across the opinion of one analyst who considered this to be the main factor in predicting the outcome of a match. He considered everything else to be secondary. What do you think?
The main factor when analyzing matches is the strength and class of the teams. If these are opponents of different levels, then most likely it is not so important where they play at home or away.
That is, playing at home or away is very important, but I think it’s not the main thing. If the teams are approximately the same level, then factors such as playing away can be of great importance, support from the stands, home stadium, more time to rest, etc.
To answer your question, I will say that playing away is very important, but not the main thing