This is just straight up false. You can compile subsets of the engine even in Godot 3. Godot 4 has made this a first class citizen.
replyC++ coding is just fine. It's not painful. It can be a bit of boilerplate to expose c++ member fields and functions to the rest of the engine but you get some great power out of that. Just use compile your own module right into the engine. Don't use gdnative.
As someone who's codes a lot of c++ in Godot I really am not sure what your talking about here.
SDL isn't even in the same dimension of usability compared to the Godot editor.
On top of that, if you wanted to godot-rust is a extremely well supported - we've used it extensively and have nothing but praise. There are several other language bindings with varying levels of support too, no need to stick with C++ if that's really their line in the sand.
replyThanks, wasn't familiar with these, I'll look into them though the project direction is unlikely to change to swap Godot out. As of now, the binaries are in the 60-80 MB range; so not tiny - but not something I'd consider massive for what it is.
replyUsage has been relatively snappy (could be better, I suppose, I need more time). Definitely not sluggish.
A concern is that RAM usage is on the higher side (this is something I'll look at on the next release).