You’re welcome on the feedback, & it is interesting to hear that we are using the exact same setup.
I believe Tivo is probably closest to providing what you want with their Roamio. If there had simply been a PS Vue app for Tivo Roamio I probably would have gone that route myself. But for now it doesn’t appear that Tivo & PS have any intention to play with each other. I contacted both by email regarding said app, and got no response from either of them.
Thus it left me to go with Tablo & use Fire TV as my platform for access to everything.