Sadly don't think Bevy's going to benefit too much from this drama. Most people from Unity will want a more complete toolset and probably won't be wanting to learn a whole new language. Can see a lot of indie devs making the switch over to Godot though
There will be some benefit. It's not like everyone will switch to Bevy, but even if people just decide to tinker for a few days, and a fraction of a percent join the project, the project will see significant benefits from that.
The shaking of reddit's foundations didn't mean everyone who left reddit came to Lemmy, but relative to Lemmy's size at the time, the uptick was massive. When a big company takes a tumble, you have to evaluate the effect on alternatives relative to their own baselines.