This post has content warnings for: spoiler thoughts on I Saw The TV Glow.

just saw it today, sobbed the whole second half :) really an incredible movie
I take a somewhat lighter view of the ending... critically, Owen/Isabelle does actually look inside herself for the first time. I think given that we can reasonably assume that she will at least try to escape after the credits roll, if she can make it in time—and given the prominent "IT'S NOT TOO LATE" chalk art I choose to believe that she does.