So I'm studying Albert Camus's philosophy from a second-hand source and I'm questioning if Camus committed "philosophical suicide" himself.
We commit philosophical suicide when we perform a leap of faith. To perform a leap of faith is to suspend rationality, it is to claim knowledge at the cost of coherence.
So the way I interpret the absurd is not that the universe does not have any causal structure* but rather that we humans cannot trace nor foresee the causal chain of events. Now contrasting this to man's pursuit of meaning: One cannot say the universe is indifferent to our pursuit of meaning nor can he say it is helpful to our pursuit. Rather, given the premise we cannot "trace nor foresee the causal chain of events" we cannot reach an answer on the universe being indifferent.
There is evidence that someone who perseveres is more likely to manifest meaning rather than one who doesn't. So it isn't a simple claim that the "universe is indifferent"
*I don't want to get into the whole causality debate.