Hi Dave,
Thank you for your suggestions. It will be a few months before I need an oil change, but when I go to the Lexus dealer I will ask the service adviser about it.
Incidentally, when Lexus corporate sent me a form letter welcoming me an as owner I did respond with my above concern. I received a reply the next day or two essentially saying that Consumer Reports is an independent testing agency and I should contact them about their report on major reliability problems with the aforementioned engine. I wrote back thanking them for their prompt reply, but I (politely) pointed out that the double down red arrows were not the result of testing but instead based upon a reader survey of owners of the 2021 NX300h.
I didn't hear anything back and that was a few weeks ago so it's safe to say that Lexus corporate is disinterested and considers the matter closed.