Investigate and learn from outliers in CMS

Taking the CMS MINIAOD, investigate outlier / badly reconstructed events or particles and understand what can be done better.

```
$ gfal-ls root://xrootd.hep.kbfi.ee///store/user/jpata/mlpf/results/CMSSW_14_1_0_pre3/QCD_PU_pf
$ gfal-ls root://xrootd.hep.kbfi.ee///store/user/jpata/mlpf/results/CMSSW_14_1_0_pre3/QCD_PU_mlpf_acat2022
```