IMO it would benefit from compression and/or limiting.
If the podcast is speech only try the LevelSpeech2 plugin, after normalizing to -16LUFS,
then normalize to -16LUFS again. [LevelSpeech2 is a compressor-limiter]
After using a one-band compressor (like LevelSpeech2) sibilance may become too loud, then you need to De-Ess.
Alternatively there is free stand-alone software called Levelator to compress & limit … https://youtu.be/THMKlqvgzjU?t=207
[ Levellator output files may also require De-Essing ].