Ooooh good question! In IWTV, Louis says that he did visit Lestat (and it was in the movie).

We have #unreliable narrators and it’s hard to say whether it happened, or happened in a different way than described… 

They do agree that Lestat was in hiding and pretty decrepit. Louis describes Lestat as being holed up in some crumbling old house some short distance away from their old Rue Royale flat, which Lestat does confirm in TVL:

“And I spent the last years of the 1800s in complete seclusion in the old Garden District a block from the Lafayette Cemetery, in the finest of my houses, slumbering beneath towering oaks.”

I answered it more in depth on this post, in which I said that I trusted Louis’ account. Lestat refusing to kill a baby would be in character for him. That Louis would invent this just whole scene to provoke Lestat out of hiding is less in character for him, but possible. He did leave a lot out, and leaving out information is lying by omission. 

Your headcanon may be that it happened, and someone else’s may be that it didn’t. Even if AR says one way or the other, there are readers who will still hold onto their own headcanon. #Your headcanon may vary on this one.