I would say Bevy isn't really similar to Unity. Something like Fyrox - https://fyrox.rs/ - would be more similar. Bevy is more low level and lacks an editor (as of now, it's planned)
Someone who needs to start developing right now should use Fyrox right now. I tested the same project in both, and can echo the sentiment that Fyrox is further along and much more similar to classical engines like Godot, Unity or a number of further-along C++ engines.
Bevy breaks things every minor release and is missing key features. If more people supported the Fyrox effort, then the rust gamedev ecosystem would be less vulnerable to a change in bevy's pricing structure just as this Unity change has impacted the wider game dev ecosystem.
Bevy has a very stable ECS architecture and is being intelligently designed and built for the long run.
Bevy's lead developer is working on the editor now and it's getting closer to landing [1, 2].
[1] https://news.ycombinator.com/item?id=35998538
[2] https://news.ycombinator.com/item?id=36658488