Summary:
Lava used to produce smoke particles when it turned into stone, cobblestone, or obsidian. At some point, it stopped doing this.

Steps to Reproduce:

1. Create a small pool of lava
2. Place water next to the lava

Observed Results:
The lava does not produce smoke particles when it turns into obsidian.

Expected Results:
The lava should produce smoke particles.

Videos:
Old versions:
https://youtu.be/kG9JvM8bvgA?t=24
https://youtu.be/11Rrxxia1Og?t=43

1.18:
Minecraft 2022-02-06 11-44-16.mp4