Simulated on the public beta: My first screenshot is from a default MLB game. The screenshot shows that
11 players drafted in the year 2022 had innings pitched, or plate appearances in 2023, the following year.
The next screenshot shows what I can find for the time spanning year drafted to the year debuted. Since the 2004 amateur draft, the most debuts within a year of being drafted is
8 (2008).
The final attachment is a CSV I put together that combines draft data scraped from baseball-reference (June Amateur Drafts 2004 and onward), and debut data from Lahman's DB. This is where the info in the second screenshot comes from and it is being attached cause I'd be very pleased if someone can double-check my work
If I'm right, we are still seeing an excess of players reaching the majors in a short period of time. I think this patch has improved upon what we were seeing in prior versions, but I think the default development may still be a bit funky.
*EDIT:
Additionally, and while I'm aware that two draft years isn't that large a sample size, 10 players drafted in my test league's 2021 draft debuted in or before 2022.