I spent a lot of time with bloaty for our embedded application and found I had more actionable output from something like this...

nm -B -l -r --size-sort --print-size -t d ./path/to/compiler/output{.so} | c++filt > /tmp/by_size

Just a lot of flags that show you size by symbol in decimal with unmangled symbols. Run it before you run `strip` in your CI pipeline or whatever preps a build for proper release.