Teixcalaan earned two Hugos for Weller in short order; of course people have heard of it.

However, it shouldn't be surprising that it's little known to the type of crowd that Murderbot Diaries is likely to appeal to...perhaps even more so when audiobook is the preferred consumption format for such short novellas as many commenters here have expressed.

It won the Hugo and was shortlisted for the Nebula, so at least some people have heard of it. Those are the two most famous sci-fi awards. Sometimes I look at their shortlists for ideas on what to read next.