Check out Sounds Wrong, Doesn’t It? by rogersgeorge. Here is an excerpt:
First speech bubble. It’s correct!
https://www.gocomics.com/lastkiss/2019/08/19
That “whom” sounds wrong because we’re used to hearing the subject of the sentence first. That ‘whom’ is really the object of “of.” You can also say that the “whom” is introducing the noun clause that’s the…