I guess the ideal way to put it is that I didn't mean "decision" necessarily in a "free-will, non-deterministic" way but rather in a more computational sense (like branches of an "if").
If ultimately free will turns out to not exist, that will affect us very little in how we live: perhaps morally we should be more forgiving towards other people's shortcomings
I still believe people make decisions and that those decisions have consequences, I just think the decisions can likely be traced back to the state of the universe and physical processes rather than poofing out of nowhere. Of course, even if quantum mechanics means that there are some random processes at play, that doesn't change much since it is still quantum mechanics at the root of those "poofs".
That's good practice anyway.