Portuguese players are actually quite good and some of their names can be said to be famous names but their performance in the national team is very different at the club.
they seem to lose momentum and cooperation when playing at the national team level.
talking about their coach actually i see ronaldo more often giving instructions than fernando santos

This is very true! Fernando Santos is heavily criticized in Portugal, for always using players who no longer pay to the detriment of other good players. In addition to not putting players to play in their usual ways (so the "darlings" can continue playing). It was because of this bad strategy that they are now in the playoffs.
He is one of the coaches who is actually spoiled because there are already good players in him and he just needs to make the right composition for that.
but he's overconfident in this qualifier and it's this trait that makes him have to fight for the playoffs now.
for the playoffs themselves there is no guarantee of easy passage now because indeed the teams that are on the playoff path can't be underestimated, moreover there is their strongest competitor, namely Italy.