ELF files contain metadata like debug information so their size on disk is not a good indication of the amount of Flash the program will use once it's loaded on the target device's memory.
The next three sections, `.data`, `.bss` and `.uninit`, are located in RAM -- RAM memory spans the address range `0x2000_0000` - `0x2004_0000` (256 KB). These sections contain statically allocated variables (`static` variables).