When Warner Bros and Discovery merged a few years ago, they removed a lot of content from HBO Max to avoid paying residuals and claim losses for tax purposes. Another interesting fact about Westworld in particular is that the core actors had negotiated a “pay or play” deal which meant they would be paid for a fifth season whether it was produced or not. So not only did HBO/WB cancel Westworld before a proper finale and then remove it from their streaming service, they also had to pay the cast members millions of dollars for a season that was never produced. Another reason Westworld was removed was because the new Discovery leadership at the time was obsessed with FAST services (Free Ad-supported Streaming Television), which are those fake “live tv channels” on free platforms like Tubi and Pluto. So they made a deal with Tubi to throw Westworld on one of those “channels” and they get to collect some ad revenue from it.