no, that's not true.From my experience, but also from others' comments, in most matches the opponents have same number of shots, even if they are weaker teams or/and you have 60%/70%/80% ball possession.
but usually there is no analogy between ball possession (or quality of the teams) and shots, like in real football.
I never play hard attacking (only if I 'm behind 2 or more goals), usually starting with def/counters (even with weaker teams) and have great offense.
no relation between t11 attack vs defense and
Barcelona vs Juve
lol