Its one thing to look at total MPAA-scope production and say 'see see its about what it always has been in terms of original content' but...
I assume that includes all the direct to video/streaming, barely promoted stuff you never hear about unless you are like "into" a certain art-house or something. Certainly there is a lot more of this now that:
You can shoot a movie all digital rather than on expensive film under very costly lighting conditions and/or in any location where you don't have as ideal conditions as CA.
You can 'get away with' if you are budget constrained doing most of your post production on a couple Mac Pros with a handful of people.
Your distribution and reproduction costs can be near zero.
I would be more interested in how the break down compares if we only look at movies with say a 2024 budget of 130mil+ and compare them against movies with that kinda production budge inflation adjusted to previous decades. Putting a filter like that on it might be a little more realistic view of what the 'industry' is doing.