Why do I "need" Audirvana, Roon or the like versus just Tidal App?

Hi, I stream Tidal MQA and their hifi via my Macbook Pro. I use the Tidal app on the MBpro which unpacks MQA, contains my playlists etc. In the future, I may also stream ripped cds on very rare occasion from a connected hard drive, as well as any hi res audio files I may purchase. However, 99.9% is an is likely to continue to be Tidal streaming. Maybe, just maybe adding Quboz or Amazon in the future...

I feed this from my MAC via USB out to my integrated amp and DAC (Peachtree Nova 300). I have no plans to have a separate server etc in the short term, …but may do so in the future.

I cannot understand what, if anything, Audirvana (or Roon and the like) would bring to.the table in my scenario. Perhaps better MQA unpacking? Slicker interface? Better sound quality?

I would greatly appreciate you all's thoughts on this! Thank you very much.