Yeah, I think Tarantino has a violence fetish. Great director, but his penchant for gore has kept me away from several of his films that I'm sure were very good, but didn't want to fade the gross violence.
I was leery of seeing Once Upon a Time in Hollywood for that reason. But I knew so much about that particular era, having lived in Hollwyood at the time, that I saw it anyway. I was very pleasantly surprised, and very much enjoyed the film. There was almost no gore except at the end, which was treated as comedy.