I watched the show like a Marvel movie -- it's half action-drama, half tongue-in-cheek. In fact Villanelle herself talks and acts towards this self-commentary. A lot.
When I started poking around I was amazed at how strongly the audience skews towards Mary Sues unironically trumpeting her as a Lesbian Feminist. As if I Kissed A Girl hasn't been a hackneyed corporate Hollywood trope for 30 years already. I suspected for a while that the writers were making fun of Undergrad Third Wave Dyke Power but after reading comments by the show creators now I just think they were milking the low-hanging fruit. Selling trucks nuts to rednecks. (That's how you do metonymy, kids.)
I liked the show because:
(1) Jesus fuck, Jodie Comer.
(2) Carolyn and Konstantin
(3) The clothes
(4) The locations
(5) The weird, creative murders (really only the first couple seasons)
For that I was even willing to tolerate Sandra Oh.
A warning about the last season: if you thought the show was overwritten and self-important oh man you are NOT going to like the last season.