The large file sizes are not because of bloat per-se...
It's a technique which supposedly helped at one point in time to reduce loading times, helldiver's being the most note-able example of removing this "optimization".
However, this is by design - specifically as an optimization. Can't really be calling that boat in the parents context of inefficient resource usage
Interesting, today I learned!
We aren't talking about the initial downloads though. We are talking about updates. I am like 80% sure you should be able to send what changed without sending the whole game as if you were downloading it for the first time.
Do you have some resource for people outside this field to understand what it's about?
This was the the reason in Helldivers, other games have different reasons - like uncompressed audio (which IIRC was the reason for the CoD-install-size drama a couple of years back) - the underlying reason is always the same though, the dev team not caring about asset size (or more likely: they would like to take care of it but are drowned in higher priority tasks).