Thank you so much! I am glad if you enjoy this little... surreal experience of a story, hahaha.
And Sanya with his crew does travel all around the Galaxy, so definitely some tours to loyalist space. Ah, the benefits of having a mostly self-sustaining mess of a spaceship. It might look odd and slapped together by an ork in a hurry, but it does the job!
So yeah, in the travels there is a lot of nostalgic, historic and just haunts of the past moments along with trying to make the world better. In their own unique ways.
Fuzzes by the virtue of being daemons and hanging out with their governmentally assigned daemon primarchs are pretty well-educated about the events of Horse Hearsay.
Which for example leads to An'Hangra one day demanding to visit Istvaan III, purely so she can pay proper honors to Rylanor. Because you got to respect the spirit man had. Or Lacedrace always ready to conjure crystalline vistas of a long-gone past from many millennia ago on some forgotten world, where life once thrived but does so no more.
Sanya himself is more educated on recent-er events and Imperium Today kind of stuff, but readily sponges and learns through osmosis about pretty much anything, so he is a good sport for those visits and ready helps with picking interesting spots to visit from his own knowledge.
Also very likely went to see the place he went through while in the Imperial Guard to get some kind of closure and see if he is happy with the choice he made decades ago, when he left with scary daemon bird lady.
He is probably somewhat unsure still, but hey, going from shaking in dread after his first actual combat to travelling the world with his own starship and feeling that whatever happens in his life, surely it will turn alright in the end is something, right?