Will Unity be an overhead for a simple Android game?

Question

Unity

There it seems that the compiled code will not weigh so badly.
For a simple run and jump game, that's too much.
How does this affect the game besides the fact that it will scare off players with its weight?
Performance?
How easy is development?
We want to try instead of libgdx

Answer 1

According to documentation :
An empty project would take less than 22 MB in the App Store if all the size optimizations were turned off. With code stripping, the empty scene with just the main camera can be reduced to less than 12 MB in the App Store (zipped and DRM attached).
I'm not sure that the manual contains the latest measurements, the developers in the latest versions refactored the engine and beat it into modules, it is likely that now the size is smaller.
The size of the build does not affect performance in any way, if you try hard, then, of course, you can spoil the memory with dlls and fall, but most of it will still be occupied by graphics. Unity provides a lot of profiling and build size reduction tools, don't worry about that.
Of the modern engines, Unity now has the highest iteration rate. The Asset Store has a bunch of plugins for all occasions, the documentation is good, there are a lot of tutorials. If you still have doubts, then just take one of the tutorial projects and assemble it on your mobile, so you will quickly understand what's what.