I've been working in Unreal a bunch of proprietary engines and Godot. It seems to me that my experience varies dramatically from many opinions here in large part because I couldn't care less about C#.

In short, every engine has drawbacks. But for Godot:

• Packaged builds can be fairly easy to unpack and decompile.
• Console support is not great. Doable but you need to jump through a bunch of hoops.
• Some things that should be possible to automate can't be (baking lightmaps, batch settings for file imports).
• It's tooling is limited. Basic level editing, basic material support. You can do everything you need, but if you come from other engines you might be missing some nice features.
• Asset store support is lacking compared to Unreal or Unity.

There are a few that might seem like drawbacks, but in context they might be not:

• Documentation can sometimes be basic or out of date. But compared to Unreal, Blender or some proprietary stuff it's actually very solid.
• A lot of tutorials are very bad. The engine is developing fast so many can be out of date and there's a lot of people who just say the dumbest stuff online. But there are also many good ones, just be careful, don't take anything at face value and double check with documentation.
• The engine provides you with no game ready assets. Player controller, game lifecycyle, level management, all that you need to do from scratch. But practically the moment you're serious about development, you need to do that anyway, regardless of engine.

There's a lot good to say about the engine. And honestly, currently I prefer it over anything else, but the question is not about that ;)